Gajarushi, Ashwini S. et al. published their research in Analyst (Cambridge, United Kingdom) in 2020 | CAS: 57412-08-5

4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5) belongs to catalyst ligands. Catalytic transformations have become a mainstay in the toolkit of the synthetic and increasing non-synthetic chemist alike. And they often provide a convenient approach to fine-tuning the performance of known catalysts.Safety of 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol

Ultrasensitive gas phase detection of 2,4,6-trinitrotoluene by non-covalently functionalized graphene field effect transistors was written by Gajarushi, Ashwini S.;Surya, Sandeep G.;Walawalkar, Mrinalini G.;Ravikanth, M.;Rao, V. Ramgopal;Subramaniam, Chandramouli. And the article was included in Analyst (Cambridge, United Kingdom) in 2020.Safety of 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol The following contents are mentioned in the article:

The high energy d. (4.2 MJ kg-1) and low vapor pressure (7.2 ¡Á 10-9 atm) of chem. explosives such as TNT (2,4,6-trinitrotoluene) pose a grave security risk demanding immediate attention. Detection of such hazardous and highly challenging chems. demands specific, ultra-sensitive and rapid detection platforms that can concomitantly transduce the signal as an elec. readout. Although chemo-sensitive strategies have been investigated, the majority of them are restricted to detecting TNT from solutions and are therefore not implementable in real-time, on-field situations. Addressing this demand, we report an ultra-sensitive (parts-per-billion) and rapid (?40 s) detection platform for TNT based on non-covalently functionalized graphene field effect transistors (GFETs). This multi-parametric GFET detector exhibits a reliable and specific modulation in its Dirac point upon exposure to TNT in the vapor phase. The chem. specificity provided by 5-(4-hydroxyphenyl)-10,15,20-tri(p-tolyl) zinc porphyrin (ZnTTPOH) is synergistically combined with the high surface sensitivity of graphene through a non-covalent functionalization approach to realize p-doped GFETs (Zn-GFETs). Such a FET platform exhibits extremely sensitive shifts in Dirac point (¦¤DP) that correlate with the number of nitro groups present in the analyte. Analytes with mono-, di-, and tri-nitro substituted aromatic mols. exhibit distinctly different ¦¤DP, leading to unprecedented specificity towards TNT. Addnl., the Dirac point of Zn-GFETs is invariant for common and potential interferons such as acetone and 2-propanol (perfume emulsifiers) thereby validating their practical applicability. Furthermore, the ¦¤DP is also manifested as changes in the contact potential of GFETs, indicating that sub-monolayer coverage of ZnTTPOH is sufficient to modulate the transfer characteristics of GFETs over an area 1000 times larger than the dopant dimensions. Specifically, ZnTTPOH-functionalized GFETs exhibit p-doped behavior with pos. ¦¤DP with respect to pristine GFETs. Such p-doped Zn-GFETs undergo selective charge-transfer mediated interactions with TNT resulting in enhanced electron withdrawal from Zn-GFETs. Thus the ¦¤DP shifts to a higher pos. gate voltage leading to the dichotomous combination of the highest signal generation (1.2 ¡Á 1012 V mol-1) with ppb level mol. sensitivity. Significantly, the signal generated due to TNT is 105 times higher in magnitude compared to other potential interferons. The signal reliability is established in cross-sensitivity measurements carried out with a TNT-mDNB (1:10 molar ratio) mixture pointing to high specificity for immediate applications under atmospherically relevant conditions pertaining to homeland security and global safety. This study involved multiple reactions and reactants, such as 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5Safety of 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol).

4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5) belongs to catalyst ligands. Catalytic transformations have become a mainstay in the toolkit of the synthetic and increasing non-synthetic chemist alike. And they often provide a convenient approach to fine-tuning the performance of known catalysts.Safety of 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol

Referemce:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

Kessinger, Roland et al. published their research in Helvetica Chimica Acta in 2000 | CAS: 57412-08-5

4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5) belongs to catalyst ligands. The atoms and molecules used as ligands are almost always those that are capable of functioning as the electron-pair donor in the electron-pair bond (a coordinate covalent bond) formed with the metal atom. Precious metals and metal oxides on carrier materials are used in many industrial processes as heterogenous catalysts.HPLC of Formula: 57412-08-5

Optically active macrocyclic cis-3 bis-adducts of C60: regio- and stereoselective synthesis, exciton chirality coupling, and determination of the absolute configuration, and first observation of exciton coupling between fullerene chromophores in a chiral environment was written by Kessinger, Roland;Thilgen, Carlo;Mordasini, Tiziana;Diederich, Francois. And the article was included in Helvetica Chimica Acta in 2000.HPLC of Formula: 57412-08-5 The following contents are mentioned in the article:

A series of optically active cis-3 bis-adducts was obtained regio- and diastereoselectively by Bingel macrocyclization of C60 with bis-malonates, which contain optically active tethers derived from 1,2-diols. The absolute configuration of the inherently chiral addition pattern in cis-3 bis-adducts had previously been determined by comparison of calculated and exptl. CD spectra. Full confirmation of these earlier assignments was now obtained by an independent method based on semiempirical AM1 and OM2 calculations combined with 1H-NMR spectroscopy. It was found computationally that bis-malonates [RCH(O2CCH2CO2Et)]2, which contain (R,R)- or (S,S)-butane-2,3-diol derivatives as optically active tethers, preferentially form out-out cis-3 bis-adducts of C60 as a single diastereoisomer in which the alkyl groups R adopt a gauche conformation, while the two glycolic H-atoms are in an antiperiplanar (ap) and the ester linkages to the fullerene in a gauche relationship. In contrast, in the less favorable diastereoisomer, which should not form, the alkyl groups R adopt an ap and the H-atoms a gauche conformation, while the ester bridges to the fullerene remain, for geometric reasons, locked in a gauche conformation. According to the OM2 calculations, the geometry of the fully staggered tether in the free bis-malonates closely resembles the conformation of the tether fragment in the bis-adducts formed. These computational predictions were confirmed exptl. by the measurement of the coupling constant between the vicinal glycolic H-atoms in the 1H-NMR spectrum. This conformational anal. was further supported by the regio- and diastereoselective synthesis of cis-3 bis-adducts from bis-malonates, including tethers derived from cyclic glycol units with a fixed gauche conformation of the alkyl residues R at the glycolic C-atoms. Thus, a bis-malonate of (R,R)-cyclohexane-1,2-diol provided exclusively cis-3 bis-adduct. Incorporation of a tether derived from Me 4,6-O,O-benzylidene-¦Á-D-glucopyranoside into the bis-malonate and Bingel macrocyclization diastereoselectively produced the cis-3 stereoisomer as the only macrocyclic bis-adduct. If the geometry of the alkyl groups R at the glycolic C-atoms of the tether component deviates from a gauche relationship, as in the case of tethers derived from exo cis- and trans-norbornane-2,3-diol or from trans-cyclopentane-1,2-diol, hardly any macrocyclic product is formed. The absolute configurations of the various optically active cis-3 bis-adducts were also assigned by comparison of their CD spectra, which are dominated by the chiroptical contributions of the inherently chiral fullerene chromophore. A strong chiral exciton coupling was observed for optically active macrocyclic cis-3 bis-adducts of C60 with two appended 4-(dimethylamino)benzoate or meso-tetraphenylporphyrin chromophores. Chiral exciton coupling between two fullerene chromophores was observed for the first time in the CD spectrum of the threitol-bridged bis-fullerene. This study involved multiple reactions and reactants, such as 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5HPLC of Formula: 57412-08-5).

4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5) belongs to catalyst ligands. The atoms and molecules used as ligands are almost always those that are capable of functioning as the electron-pair donor in the electron-pair bond (a coordinate covalent bond) formed with the metal atom. Precious metals and metal oxides on carrier materials are used in many industrial processes as heterogenous catalysts.HPLC of Formula: 57412-08-5

Referemce:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

Leffler, John E.’s team published research in Journal of the American Chemical Society in 73 | CAS: 6084-58-8

Journal of the American Chemical Society published new progress about 6084-58-8. 6084-58-8 belongs to catalysis-chemistry, auxiliary class Salt,Amine,Aliphatic hydrocarbon chain, name is O-Isobutylhydroxylamine hydrochloride, and the molecular formula is C4H12ClNO, Product Details of C4H12ClNO.

Leffler, John E. published the artcileThe reaction of nitrous acid with O-alkylhydroxylamines, Product Details of C4H12ClNO, the publication is Journal of the American Chemical Society (1951), 5473-5, database is CAplus.

cf. C.A. preceding abstract Powd. isatoic anhydride (3.2 g.), 2.8 g. HONH2.HCl, 2.2 g. anhydrous Na2CO3, and 8 cc. water let stand 8 hrs., the solid extracted with 60 cc. water, and the extract refrigerated overnight yielded 1.4 g. O-anthranoylhydroxylamine (I), colorless plates, m. 75-7°; Me2CO derivative, m. 108.5-9.5°. I (1.37 g.) in 25 cc. water and 6.6 g. 20% HCl treated with 1.24 g. NaNO2, the mixture treated with 1.6 g. PhOH and 1.0 g. PhOH in 50 cc. water, and (after 1 hr.) excess AcOH added yielded 2.18 g. p-HOC6H4N2C6H4CO2H-o, m. 200-5°. BuONH2.H2O (0.125 g.) in 1.5 cc. water treated with 0.069 g. NaNO2 in 3.5 cc. water, 1 drop 20% HCl added, and the mixture extracted with Et2O yielded 0.1 cc. oil which gave Bu 3,5-dinitrobenzoate, m. 61-3°. PhCH2CONH2.H2O with HNO2 yields BzH, N, PhCH2OH, and NO. iso-BuI (36.8 g.) and 21 g. hydroxyurethan added to 13.2 g. 85% KOH in 60 cc. EtOH, the mixture refluxed 5 hrs., diluted with water, extracted with Et2O, the extract concentrated, the residue refluxed 1 hr. with 32.4 g. KOH in 70 cc. water, extracted with Et2O, the extract washed with water, extracted with 70 g. 10% HCl, and the acid extract evaporated in vacuo yielded 1.65 g. O-isobutylhydroxylamine-HCl (II), m. 127-8° (from EtOAc and sublimed). II on treatment with HNO2 gave an oil which yielded iso-Bu 3,5-dinitrobenzoate, m. 84-5°. sec-BuI gave a product which could not be crystallized, and gave sec-Bu 3;5-dinitrobenzoate, m. 73-5°. K benzohydroxamate (8 g.), 12.5 g. trityl chloride, and 100 cc. pyridine refluxed 1 hr., the mixture diluted with water and extracted with Et2O yielded O-tritylbenzohydroxamic acid (III), m. 150-2° (from EtOH and from C6H6-petr. ether). III on refluxing with alc. KOH yielded p-Ph3CC6H4CHPh2, m. 230-2°; Br derivative, m. 238-41°.

Journal of the American Chemical Society published new progress about 6084-58-8. 6084-58-8 belongs to catalysis-chemistry, auxiliary class Salt,Amine,Aliphatic hydrocarbon chain, name is O-Isobutylhydroxylamine hydrochloride, and the molecular formula is C4H12ClNO, Product Details of C4H12ClNO.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Hermant, Paul’s team published research in Journal of Medicinal Chemistry in 60 | CAS: 1949-41-3

Journal of Medicinal Chemistry published new progress about 1949-41-3. 1949-41-3 belongs to catalysis-chemistry, auxiliary class Carboxylic acid,Benzene, name is 2-Methyl-4-phenylbutanoic acid, and the molecular formula is C11H14O2, HPLC of Formula: 1949-41-3.

Hermant, Paul published the artcileControlling Plasma Stability of Hydroxamic Acids: A MedChem Toolbox, HPLC of Formula: 1949-41-3, the publication is Journal of Medicinal Chemistry (2017), 60(21), 9067-9089, database is CAplus and MEDLINE.

Hydroxamic acids are outstanding zinc chelating groups that can be used to design potent and selective metalloenzyme inhibitors in various therapeutic areas. Some hydroxamic acids display a high plasma clearance resulting in poor in vivo activity, though they may be very potent compounds in vitro. The authors designed a 57-member library of hydroxamic acids to explore the structure-plasma stability relationships in these series and to identify which enzyme(s) and which pharmacophores are critical for plasma stability. Arylesterases and carboxylesterases were identified as the main metabolic enzymes for hydroxamic acids. Finally, the authors suggest structural features to be introduced or removed to improve stability. This work thus provides the first medicinal chem. toolbox (exptl. procedures and structural guidance) to assess and control the plasma stability of hydroxamic acids and realize their full potential as in vivo pharmacol. probes and therapeutic agents. This study is particularly relevant to preclin. development as it allows obtaining compounds equally stable in human and rodent models.

Journal of Medicinal Chemistry published new progress about 1949-41-3. 1949-41-3 belongs to catalysis-chemistry, auxiliary class Carboxylic acid,Benzene, name is 2-Methyl-4-phenylbutanoic acid, and the molecular formula is C11H14O2, HPLC of Formula: 1949-41-3.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Beaulieu, Pierre L.’s team published research in Journal of Medicinal Chemistry in 55 | CAS: 6972-05-0

Journal of Medicinal Chemistry published new progress about 6972-05-0. 6972-05-0 belongs to catalysis-chemistry, auxiliary class Thiourea,Amine,Aliphatic hydrocarbon chain,Amide, name is 1,1-Dimethylthiourea, and the molecular formula is C3H8N2S, Recommanded Product: 1,1-Dimethylthiourea.

Beaulieu, Pierre L. published the artcileDiscovery of the First Thumb Pocket 1 NS5B Polymerase Inhibitor (BILB 1941) with Demonstrated Antiviral Activity in Patients Chronically Infected with Genotype 1 Hepatitis C Virus (HCV), Recommanded Product: 1,1-Dimethylthiourea, the publication is Journal of Medicinal Chemistry (2012), 55(17), 7650-7666, database is CAplus and MEDLINE.

Combinations of direct acting antivirals (DAAs) that have the potential to suppress emergence of resistant virus and that can be used in interferon-sparing regimens represent a preferred option for the treatment of chronic HCV infection. We have discovered allosteric (thumb pocket 1) non-nucleoside inhibitors of HCV NS5B polymerase that inhibit replication in replicon systems. Herein, we report the late-stage optimization of indole-based inhibitors, which began with the identification of a metabolic liability common to many previously reported inhibitors in this series. By use of parallel synthesis techniques, a sparse matrix of inhibitors was generated that provided a collection of inhibitors satisfying potency criteria and displaying improved in vitro ADME profiles. “Cassette” screening for oral absorption in rat provided a short list of potential development candidates. Further evaluation led to the discovery of the first thumb pocket 1 NS5B inhibitor (BILB 1941) that demonstrated antiviral activity in patients chronically infected with genotype 1 HCV.

Journal of Medicinal Chemistry published new progress about 6972-05-0. 6972-05-0 belongs to catalysis-chemistry, auxiliary class Thiourea,Amine,Aliphatic hydrocarbon chain,Amide, name is 1,1-Dimethylthiourea, and the molecular formula is C3H8N2S, Recommanded Product: 1,1-Dimethylthiourea.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Rotta-Loria, Nicolas L.’s team published research in Advanced Synthesis & Catalysis in 357 | CAS: 1237588-12-3

Advanced Synthesis & Catalysis published new progress about 1237588-12-3. 1237588-12-3 belongs to catalysis-chemistry, auxiliary class Mono-phosphine Ligands, name is 4-(2-(Di(adamantan-1-yl)phosphino)phenyl)morpholine, and the molecular formula is C30H42NOP, Name: 4-(2-(Di(adamantan-1-yl)phosphino)phenyl)morpholine.

Rotta-Loria, Nicolas L. published the artcileUtilizing Mor-DalPhos/Palladium-Catalyzed Monoarylation in the Multicomponent One-Pot Synthesis of Indoles, Name: 4-(2-(Di(adamantan-1-yl)phosphino)phenyl)morpholine, the publication is Advanced Synthesis & Catalysis (2015), 357(1), 100-106, database is CAplus.

The application of a Mor-DalPhos/palladium catalyst system in the one-pot, multicomponent assembly of substituted indoles from ortho-chlorohaloarenes, alkyl ketones (including acetone), and primary amines is reported. The described protocols offered improved substrate scope in all three reaction components, under more mild conditions and without the need for an addnl. drying agent. The first examples of multicomponent reactions where all reactants are combined at the start of the reaction, without the need for inert atm. reaction conditions is also reported.

Advanced Synthesis & Catalysis published new progress about 1237588-12-3. 1237588-12-3 belongs to catalysis-chemistry, auxiliary class Mono-phosphine Ligands, name is 4-(2-(Di(adamantan-1-yl)phosphino)phenyl)morpholine, and the molecular formula is C30H42NOP, Name: 4-(2-(Di(adamantan-1-yl)phosphino)phenyl)morpholine.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Herrera, Fabio’s team published research in Fish Physiology and Biochemistry in 48 | CAS: 6217-54-5

Fish Physiology and Biochemistry published new progress about 6217-54-5. 6217-54-5 belongs to catalysis-chemistry, auxiliary class Alkenyl,Carboxylic acid,Aliphatic hydrocarbon chain,Metabolic Enzyme,RAR/RXR,Natural product, name is Docosahexaenoic Acid, and the molecular formula is C22H32O2, HPLC of Formula: 6217-54-5.

Herrera, Fabio published the artcilePikeperch (Sander lucioperca) spermatozoa motility and volume regulation under different osmotic and ionic conditions, HPLC of Formula: 6217-54-5, the publication is Fish Physiology and Biochemistry (2022), 48(4), 899-910, database is CAplus and MEDLINE.

Pikeperch (Sander lucioperca) is a highly profitable com. species whose economic value has greatly increased in the last decade. As in other species, the quality of spermatozoa in this species is a principal feature inherent in fertilization success and efficient natural and artificial reproduction The capacity of fish spermatozoa to be activated and tolerate environmental changes (in osmolality, ion composition, external pH, temperature, etc.) during the motility period contributes to fertilization success. In this study, we investigated the effects of environmental osmolality and ion composition on spermatozoa motility. To determine if the activation mechanism is affected by sperm quality parameters, we measured semen characteristics such as semen volume, spermatozoa concentration, seminal fluid osmolality and ion composition, and spermatozoa lipid composition An addnl. parameter of sperm quality reflecting spermatozoa osmoresistance, the swelling rate, was measured by the nephelometry method. We detected that sperm samples with the highest content of palmitic (C16:0) and palmitoleic (C16:1) acids showed the lowest motility activation under the studied conditions, suggesting that these fatty acids are possible markers for the determination of spermatozoa quality in fish. Our results show that pikeperch spermatozoa can be activated under different osmotic conditions and that cell swelling always accompanies motility. However, spermatozoa sustain their volume under hypotonic conditions when motility is not initiated, suggesting that pikeperch spermatozoa activation is mainly controlled by ion composition rather than the osmolarity of the surrounding medium.

Fish Physiology and Biochemistry published new progress about 6217-54-5. 6217-54-5 belongs to catalysis-chemistry, auxiliary class Alkenyl,Carboxylic acid,Aliphatic hydrocarbon chain,Metabolic Enzyme,RAR/RXR,Natural product, name is Docosahexaenoic Acid, and the molecular formula is C22H32O2, HPLC of Formula: 6217-54-5.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Platten, Andrew W. J.’s team published research in ChemCatChem in 14 | CAS: 23897-16-7

ChemCatChem published new progress about 23897-16-7. 23897-16-7 belongs to catalysis-chemistry, auxiliary class Aryl phosphine ligand,Mono-phosphine Ligands, name is Dimesitylphosphine oxide, and the molecular formula is C18H23OP, Safety of Dimesitylphosphine oxide.

Platten, Andrew W. J. published the artcileHydrophosphinylation of Styrenes Catalyzed by Well-Defined s-Block Bimetallics, Safety of Dimesitylphosphine oxide, the publication is ChemCatChem (2022), 14(5), e202101853, database is CAplus.

Advancing the applications of s-block heterobimetallic complexes in catalysis, authors report the use of potassium magnesiate (PMDETA)2K2Mg(CH2SiMe3)4 [PMDETA = N,N,N’,N’,N”-pentamethyldiethylenetriamine] for the catalytic hydrophosphinylation of styrenes under mild conditions. Exploiting chem. cooperation, this bimetallic approach offers greater catalytic activity and chemoselectivity than the single-metal components KCH2SiMe3 and Mg(CH2SiMe3)2. Stoichiometric studies between (PMDETA)2K2Mg(CH2SiMe3)4 and Ph2P(O)H help to elucidate the constitution of the active catalytic species, and illustrate the influence of donors on the potassium cation coordination, and how this may impact catalytic activity. Mechanistic investigations support that the rate determining step is the insertion of the olefinic substrate.

ChemCatChem published new progress about 23897-16-7. 23897-16-7 belongs to catalysis-chemistry, auxiliary class Aryl phosphine ligand,Mono-phosphine Ligands, name is Dimesitylphosphine oxide, and the molecular formula is C18H23OP, Safety of Dimesitylphosphine oxide.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Bobovich, Ya. S.’s team published research in Zhurnal Prikladnoi Spektroskopii in 11 | CAS: 1821-27-8

Zhurnal Prikladnoi Spektroskopii published new progress about 1821-27-8. 1821-27-8 belongs to catalysis-chemistry, auxiliary class Nitro Compound,Amine,Benzene, name is Bis(4-nitrophenyl)amine, and the molecular formula is C12H9N3O4, Application of Bis(4-nitrophenyl)amine.

Bobovich, Ya. S. published the artcileStimulated Raman spectra of molecular crystals, Application of Bis(4-nitrophenyl)amine, the publication is Zhurnal Prikladnoi Spektroskopii (1969), 11(4), 662-9, database is CAplus.

Stimulated Raman spectra were obtained of 21 powd. compounds (at 77 and 300°K; some also at liquid He temperature) as well as of C6H6 and its mono- and disubstituted derivatives, CS2, dioxane, MeNO2, cyclohexane, CH2ClCH:-CH2, CCl4, CHBr3, and binary and ternary mixtures of these compounds (in a polycrystalline state obtained by a rapid cooling of the samples with liquid N) by means of a ruby laser (maximum output 20 MW) provided with a resonance filter. Twelve overtones of the 220-cm-1 line were observed in the spectrum of powd. crystalline S at 77°K. Two intense and 1 weak overtones of the 460-cm-1 line appeared in the spectrum of CCl4. The stimulated Raman line of CHBr3 at 155 cm-1 is fully depolarized (σho = 0.78) in the spontaneous Raman spectrum and is related to the antisym. vibration. In some cases, the relative thresholds of generation of the stimulated Raman scattering in crystallized mixtures were measured. Lines possessing the frequencies of the sum vibrations are not always excited simultaneously with the lines of individual components of the sum vibrations; a line at 656 cm-1 with 2 overtones and a weak line at 1345 cm-1 were observed in the spectrum of a CS2PhNO2 mixture but their combination was missing. An ability to generate external vibrations in CS2 and paraisomers of bromobenzoic acid, dibromobenzene, and nitroaniline (the 2 former at 77°K; the 2 latter at liquid He temperature) was discovered. A modulation of light at 75 cm-1 was observed in the spectrum of CS2. The vibration frequencies of 20 and 27 cm-1 appeared in the spectra of p-dibromobenzene and p-bromobenzoic acid, resp. External (40, 41, 2 × 40, and 3 × 40 cm-1) and internal (1276, 1280, and 1313 cm-1) vibrations can be observed simultaneously in the spectrum of nitroaniline at 15-20°K. The generation threshold for the 1086-cm-1 line becomes lower by a factor of 1/2.3 and the width of this line in the spontaneous Raman spectrum becomes lower by a factor of 1/1.7 by cooling the calcite crystal from 300 to 80°K. The effect of circular polarization of the laser radiation on the intensity of stimulated Raman lines was studied. Frozen C6H6, o-xylene, PhMe, and CS2 show a luminescence with the duration of 0.7, 0.25, 0.15, and 0.1 sec, resp.; the circular polarization weakens the phosphorescence of these compounds by a factor of 1/1.5 but the stimulated Raman scattering is strengthened simultaneously. Circular polarization of the exciting radiation is accompanied by a strengthening of stimulated Raman scattering also in frozen MeNO2, CHBr3, and dichloroethane.

Zhurnal Prikladnoi Spektroskopii published new progress about 1821-27-8. 1821-27-8 belongs to catalysis-chemistry, auxiliary class Nitro Compound,Amine,Benzene, name is Bis(4-nitrophenyl)amine, and the molecular formula is C12H9N3O4, Application of Bis(4-nitrophenyl)amine.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Amangasieva, G. A.’s team published research in Russian Journal of Organic Chemistry in 54 | CAS: 1821-27-8

Russian Journal of Organic Chemistry published new progress about 1821-27-8. 1821-27-8 belongs to catalysis-chemistry, auxiliary class Nitro Compound,Amine,Benzene, name is Bis(4-nitrophenyl)amine, and the molecular formula is C12H9N3O4, Related Products of catalysis-chemistry.

Amangasieva, G. A. published the artcileSynthesis of Amides by Nucleophilic Substitution of Hydrogen in 3-Nitropyridine, Related Products of catalysis-chemistry, the publication is Russian Journal of Organic Chemistry (2018), 54(6), 867-872, database is CAplus.

3-Nitropyridine reacted with nitrogen-centered carboxylic acid amide anions in anhydrous DMSO in the presence of K3Fe(CN)6 via oxidative nucleophilic substitution of hydrogen to give previously unknown N-(5-nitropyridin-2-yl)carboxamides. The reaction of nitrobenzene with urea anion in DMSO enabled one-pot synthesis of bis(4-nitrophenyl)amine.

Russian Journal of Organic Chemistry published new progress about 1821-27-8. 1821-27-8 belongs to catalysis-chemistry, auxiliary class Nitro Compound,Amine,Benzene, name is Bis(4-nitrophenyl)amine, and the molecular formula is C12H9N3O4, Related Products of catalysis-chemistry.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia