Category: 613-33-2

Oku, Naoki published the artcilePhotoassisted Cross-Coupling Reaction of ¦Á-Chlorocarbonyl Compounds with Arylboronic Acids, Formula: C14H14, the publication is Organic Letters (2022), 24(8), 1616-1619, database is CAplus and MEDLINE.

A Suzuki-Miyaura cross-coupling reaction of ¦Á-chloroacetates or ¦Á-chloroacetamides with arylboronic acids was made possible by visible-light irradiation This reaction provides a useful method for the synthesis of ¦Á-arylacetates and ¦Á-arylacetamides from chlorides under mild reaction conditions. An indole-3-acetic acid derivative that is the key intermediate of the plant hormone auxin was synthesized from 1-Boc-indole by two steps combining Ir(I)-catalyzed C-H borylation and Pd(0)-catalyzed cross-coupling reaction.

Organic Letters published new progress about 613-33-2. 613-33-2 belongs to catalysis-chemistry, auxiliary class Benzene, name is 4,4′-Dimethyldiphenyl, and the molecular formula is C14H14, Formula: C14H14.

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

Liu, Mingyuan published the artcileVertical profile and assessment of soil pollution from a typical coking plant by suspect screening and non-target screening using GC/QTOF-MS, Quality Control of 613-33-2, the publication is Science of the Total Environment (2022), 151278, database is CAplus and MEDLINE.

A comprehensive workflow for suspect screening and non-target screening with gas chromatog. coupled with quadrupole time-of-flight mass spectrometry (GC/QTOF-MS) was used to characterize the pollution characteristics of soil samples in a typical coking plant in China. Suspect screening confirmed 57 chems. including PAHs, alkyl PAHs, and phthalates contained in high-resolution personal compound database and library (PCDL). Non-target screening detected 88 chems. from soil samples in the NIST 17 library. A total of 122 chems. were screened in soil samples, and many of them were of emerging concern. Their presence in the soil obtained from coking operations was underestimated, such as the oxygenated PAHs (naphtho[2,1-b]furan and 9H-fluoren-9-one), and the alkyl biphenyls compounds (4,4¡ä-dimethylbiphenyl, 3,3¡ä-dimethylbiphenyl, 4-methyl-1,1¡ä-biphenyl and 2,2¡ä,5,5¡ä-tetramethyl-1,1¡ä-biphenyl). Toxicity assays by luminescent bacteria proved that the extracts from soil samples at different depths showed varying toxicity to V. qinghaiensis sp.-Q67. Soil extracts from a depth of 20-40 cm exhibited the greatest toxicity to luminescent bacteria compared with the other six-layered soil samples, which was correlated with the number of detectable pollutants and total organic carbon content. This study provided a screening method for suspect and non-target contaminants in urban industrial soil sites, which was important in identifying localized contamination sources.

Science of the Total Environment published new progress about 613-33-2. 613-33-2 belongs to catalysis-chemistry, auxiliary class Benzene, name is 4,4′-Dimethyldiphenyl, and the molecular formula is C14H14, Quality Control of 613-33-2.

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

Ioannou, Polydoros-Chrysovalantis published the artcileStructural and catalytic properties of the [Ni(BIPHEP)X₂] complexes, BIPHEP = 2,2-diphenylphosphino-1,1-biphenyl; X = Cl, Br, Quality Control of 613-33-2, the publication is Inorganica Chimica Acta (2021), 120300, database is CAplus.

The synthesis and catalytic properties in Kumada C-C coupling of the [Ni(BIPHEP)X₂] complexes, X = Cl (1), Br (2), are described. The crystal structures of the BIPHEP ligand and 2 are also presented and compared with previously reported crystal structures of atropisomeric bidentate phosphine ligands (P,P) and related [M(P,P)X₂] complexes (M = Ni, Pd, Pt). BIPHEP crystallizes in the C2/c space group, with both enantiomers present in the unit cell. This is consistent with BIPHEP being a “tropos” ligand. Complex 2 crystallizes in the P21/a space group. There are two symmetry-independent mols. in the asym. unit, namely 2a and 2b, in which the BIPHEP ligand adopts the S or the R configuration, resp. Complexes 2a and 2b exhibit a severely tetrahedrally-distorted square planar NiP₂Br₂ coordination sphere, with a PNiP bite angle of 93.3¡ã and 94.7¡ã, resp. The observed catalytic behavior of complexes 1 and 2 in the Kumada coupling between p-tert-butyl-halobenzene and p-tolylmagnesium chloride is benchmarked against that of [Ni(dppp)Cl₂], dppp = 1,3-bis(diphenylphoshpino)propane. However, all three complexes are catalytically inactive in the Suzuki-Miyaura coupling reaction.

Inorganica Chimica Acta published new progress about 613-33-2. 613-33-2 belongs to catalysis-chemistry, auxiliary class Benzene, name is 4,4′-Dimethyldiphenyl, and the molecular formula is C14H14, Quality Control of 613-33-2.

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

Sarkissian, Elin published the artcileStrategy for Selective C_sp2-F and C_sp2-C_sp2 Formations from Organoplatinum Complexes, COA of Formula: C14H14, the publication is Inorganic Chemistry (2021), 60(2), 1016-1020, database is CAplus and MEDLINE.

By changing the parameters of fluorination reaction of bisaryl-platinum(II) complexes, each possible competitive pathway of Ar-Ar and Ar-F formation can be selectively controlled. It was discovered that steric hindrance, type of fluorinating reagent, and temperature of reaction are determinants for Ar-F vs Ar-Ar bond formation pathway from bisaryl-fluoro-platinum(IV) complexes. The combination of bulky ligands such as mesityl with Selectfluor at RT leads to Ar-F bond formation in the presence of possible Ar-Ar formation. Selective Ar-F and Ar-Ar bond formation from organoplatinum complexes by controlling fluorinating reagents, steric hindrance and temperature

Inorganic Chemistry published new progress about 613-33-2. 613-33-2 belongs to catalysis-chemistry, auxiliary class Benzene, name is 4,4′-Dimethyldiphenyl, and the molecular formula is C14H14, COA of Formula: C14H14.

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

Vasireddy, Purna C. R. published the artcilePalladium-catalyzed aryl group transfer from triarylphosphines to arylboronic acids, Category: catalysis-chemistry, the publication is Polyhedron (2022), 115550, database is CAplus.

A study of Pd-catalyzed arylation of arylboronic acids with triarylphosphines is presented. Various parameters of this transformation, such as the oxygen presence, choice of solvent, temperature, palladium source, bases and oxidants, were tested and the optimal conditions of the aryl transfer were determined The effect of electron-withdrawing and electron-donating substituents on the aryl groups of both reactants was also investigated. The unusual transfer of the acetate group from Pd(OAc)₂ to p-nitrophenylboronic acid in the presence of triarylphosphines is reported. A plausible mechanism of the Pd-catalyzed aryl group transfer from triarylphosphines to the arylboronic acid is proposed.

Polyhedron published new progress about 613-33-2. 613-33-2 belongs to catalysis-chemistry, auxiliary class Benzene, name is 4,4′-Dimethyldiphenyl, and the molecular formula is C7H5Br2F, Category: catalysis-chemistry.

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

Huang, Di published the artcileScreening organic contaminants in soil by two-dimensional gas chromatography high-resolution time-of-flight mass spectrometry: A non-target analysis strategy and contaminated area case study, Synthetic Route of 613-33-2, the publication is Environmental Research (2022), 112420, database is CAplus and MEDLINE.

Thousands of organic substances that are used in industrial applications ultimately enter the soil and may neg. affect human health. Limited numbers of target pollutants are usually monitored in environmental media because of anal. limitations. In this study, a non-target screening method for quickly analyzing multiple soil samples from a contaminated area (a chem. industry park) by two-dimensional gas chromatog. high-resolution time-of-flight mass spectrometry was developed. The types of compounds present in the soil samples were preliminarily analyzed through data simplification and visual assessment. A total of 81 organic compounds with detection frequencies ¡Ý40% in the samples from the chem. industry park were selected for identification, including 38 PAHs, 26 oxygenated organic compounds, eight N-containing compounds, and nine other compounds Potential sources of the organic compounds in the industrial park were investigated. Some pharmaceutical and organic synthetic intermediates in the soil were affected by nearby chem. plants. After assessing the relative abundances and detection frequencies, 36 pollutants that may pose potential risks to the environment were preliminarily identified. The results of the study were helpful for assessing environmental risks around Yangkou industrial park and they will be helpful when assessing risks in other contaminated areas.

Environmental Research published new progress about 613-33-2. 613-33-2 belongs to catalysis-chemistry, auxiliary class Benzene, name is 4,4′-Dimethyldiphenyl, and the molecular formula is C14H14, Synthetic Route of 613-33-2.

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

Das, Anish Kumar published the artcileDefects Engineering on Ceria and C-C Coupling Reactions Using [Au₁₁(PPh₃)₇I₃] Nanocluster: A Combined Experimental and Theoretical Study, Recommanded Product: 4,4′-Dimethyldiphenyl, the publication is ACS Nano (2020), 14(12), 16681-16688, database is CAplus and MEDLINE.

The synthesis of Au₁₁(PPh₃)₇I₃ cluster that consists of an incomplete icosahedron core is reported. During its impregnation process on CeO₂ support, all of the ligands were removed from the kernel and the Au₁₁ kernel fits into the defects of ceria (embedded onto the O vacancy of ceria (111) plane). This Au₁₁@CeO₂ has high atom efficiency and catalytic activity for Ullmann-type C-C homocoupling reactions for electron rich substrates. D. functional theory calculations showed that hexagonal arrangements of Au₁₁ kernel on (111) plane of CeO₂ is the most stable one. Theor. calculations also proved that the atop Au atom has more favorable interaction with Ph iodide than the 2nd layer Au atoms of the Au₁₁@CeO₂. The present catalyst mimics the single-atom catalyst-like behavior in facilitating the coupling reactions.

ACS Nano published new progress about 613-33-2. 613-33-2 belongs to catalysis-chemistry, auxiliary class Benzene, name is 4,4′-Dimethyldiphenyl, and the molecular formula is C14H14, Recommanded Product: 4,4′-Dimethyldiphenyl.

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

Lamola, Jairus L. published the artcileEvaluation of P-bridged biaryl phosphine ligands in palladium-catalyzed Suzuki-Miyaura cross-coupling reactions, SDS of cas: 613-33-2, the publication is RSC Advances (2021), 11(43), 26883-26891, database is CAplus and MEDLINE.

A family of biaryl phosphacyclic ligands derived from phobane and phosphatrioxa-adamantane frameworks was described. The rigid biaryl phosphacycles were efficient for synthesis of biaryls ArAr¹ [Ar = 3-MeC₆H₄, 2-naphthyl, 2-thienyl, etc.; Ar¹ = Ph, 2-MeC₆H₄, 2,6-di-MeC₆H₃] via palladium-catalyzed Suzuki-Miyaura cross-coupling of aryl bromides/chlorides with phenylboronic acids. In particular, coupling reactions of the challenging sterically hindered and heterocyclic substrates were viable at room temperature

RSC Advances published new progress about 613-33-2. 613-33-2 belongs to catalysis-chemistry, auxiliary class Benzene, name is 4,4′-Dimethyldiphenyl, and the molecular formula is C14H14, SDS of cas: 613-33-2.

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

Minus, Matthew B. published the artcile“Benchtop” Biaryl Coupling Using Pd/Cu Cocatalysis: Application to the Synthesis of Conjugated Polymers, Related Products of catalysis-chemistry, the publication is Organic Letters (2021), 23(8), 2873-2877, database is CAplus and MEDLINE.

Typically, Suzuki couplings used in polymerizations are performed at raised temperatures in inert atmospheres. As a result, the synthesis of aromatic materials that utilize this chem. often demands expensive and specialized equipment on an industrial scale. Herein, we describe a bimetallic methodol. that exploits the distinct reactivities of palladium and copper to perform high yielding aryl-aryl dimerizations and polymerizations that can be performed on a benchtop under ambient conditions. These couplings are facile and can be performed by simple mixing in the open vessel. To demonstrate the utility of this method in the context of polymer synthesis: polyfluorene, polycarbazole, polysilafluorene, and poly(6,12-dihydro-dithienoindacenodithiophene) were created at ambient temperature and open to air.

Organic Letters published new progress about 613-33-2. 613-33-2 belongs to catalysis-chemistry, auxiliary class Benzene, name is 4,4′-Dimethyldiphenyl, and the molecular formula is C14H14, Related Products of catalysis-chemistry.

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

Bhandari, Pallab published the artcileFace-Directed Tetrahedral Organic Cage Anchored Palladium Nanoparticles for Selective Homocoupling Reactions, Synthetic Route of 613-33-2, the publication is European Journal of Inorganic Chemistry (2022), 2022(7), e202100986, database is CAplus.

Numerous metalla-supramol. architectures have been designed using coordination-driven self-assembly, while the number of analogous organic architectures is still very limited. In this regard, mainly di-, tri- and a few tetra-aldehydes have been exploited as precursors in combination with appropriate di-/tri-amines to obtain the desired structures with limited complexities. We report here facile synthesis of two face-directed tetrahedral organic cages (TC-R and TC-S) that were formed by [4+12] imine condensation of a new hexa-aldehyde precursor with two enantiomers of 1,2-diaminocyclohexane sep. (CA-R and CA-S). The covalent imine cages are very large with an intrinsic porous cavity of ?1250 ? and the faces of the cages consist of aromatic aldehyde units whereas each corner is occupied by three semi-flexible diamine moieties. Palladium (PdNPs) nanoparticles (3.5¡À0.3 nm) were synthesized employing the cage TC-R as a solid support via double-solvent approach. Furthermore, the cage hosted PdNPs [Pd(0)@TC-R-A] exhibited efficient catalytic activity for selective homocoupling of aryl- and hetero-aryl halides with high thermal stability and reusability.

European Journal of Inorganic Chemistry published new progress about 613-33-2. 613-33-2 belongs to catalysis-chemistry, auxiliary class Benzene, name is 4,4′-Dimethyldiphenyl, and the molecular formula is C14H14, Synthetic Route of 613-33-2.

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