Category: 22693-41-0

Yue, Fuyang published the artcileLight-Mediated Defluorosilylation of ¦Á-Trifluoromethyl Arylalkenes through Hydrogen Atom Transfer, Product Details of C15H24S, the publication is Organic Letters (2022), 24(22), 4019-4023, database is CAplus and MEDLINE.

Herein, the authors report a direct, light-mediated defluorosilylation protocol for converting ¦Á-trifluoromethyl arylalkenes and alkyl silanes into ¦Ã,¦Ã-difluoroallylic compounds via a combination of photoredox catalysis and H atom transfer. The clean, convenient protocol can be scaled to the gram level, and its mild conditions make it very suitable for late-stage functionalization of complex natural products and drugs.

Organic Letters published new progress about 22693-41-0. 22693-41-0 belongs to catalysis-chemistry, auxiliary class Other Functionalization Reagent, name is 2,4,6-Triisopropylbenzenethiol, and the molecular formula is C5H9IO2, Product Details of C15H24S.

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

Della Monica, Francesco published the artcileCO₂ cycloaddition to epoxides promoted by bis-thioether-phenolate Fe(II) and Fe(III) complexes, SDS of cas: 22693-41-0, the publication is Molecular Catalysis (2018), 46-52, database is CAplus.

The synthesis and characterization of three new bis-thioether-phenolate monoanionic tridentate [SOS]-type ligands, and the synthesis of the corresponding Fe(II) and Fe(III) complexes are reported. Their application, in combination with tetrabutylammonium bromide (TBAB), as catalysts for the cycloaddition of CO₂ to a number of monosubstituted epoxides and cyclohexene oxide was investigated. For example, epichlorohydrin is converted in the corresponding cyclic carbonate, with a turnover frequency of 155 h^-1 (0.1 mol% of iron, 0.5 mol% of TBAB, 10 bar of CO₂). With the aim to obtain further information about the catalyst structure-activity relationship and the reaction mechanism, the reaction between the catalyst precursors and TBAB was investigated, suggesting the formation of an anionic metalate species in the case of the Fe(III) complexes that is supposed to be true catalyst. A mechanistic scenario explaining the different behavior of the Fe(II) and Fe(III) complexes is proposed.

Molecular Catalysis published new progress about 22693-41-0. 22693-41-0 belongs to catalysis-chemistry, auxiliary class Other Functionalization Reagent, name is 2,4,6-Triisopropylbenzenethiol, and the molecular formula is C15H24S, SDS of cas: 22693-41-0.

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

Corbierre, Muriel K. published the artcilePreparation of Thiol-Capped Gold Nanoparticles by Chemical Reduction of Soluble Au(I)-Thiolates, Recommanded Product: 2,4,6-Triisopropylbenzenethiol, the publication is Chemistry of Materials (2005), 17(23), 5691-5696, database is CAplus.

A novel preparation method of thiol-stabilized gold nanoparticles is described. Soluble Au(I)-thiolate complexes were prepared, isolated, and reduced with Superhydride (lithium tri-Et borohydride) in suitable inert solvents. The dimensions of the resulting gold nanoparticles were compared to those prepared using conventional methods (i.e., that use a mixture of Au(III) salts and thiols as the initial reagents). The sizes (and size dispersity) of the thiol-capped gold nanoparticles synthesized here are comparable to those prepared by the conventional methods used.

Chemistry of Materials published new progress about 22693-41-0. 22693-41-0 belongs to catalysis-chemistry, auxiliary class Other Functionalization Reagent, name is 2,4,6-Triisopropylbenzenethiol, and the molecular formula is C15H24S, Recommanded Product: 2,4,6-Triisopropylbenzenethiol.

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

Hughes, David L. published the artcileFive-coordinate complexes [MoH(SC₆H₂R₃-2,4,6)₃(PR’Ph₂)] (R = Me or Prⁱ, R’ = Me or Et) and their reactions with nitrogen donors. Crystal structures of [MoH(SC₆H₂Prⁱ₃-2,4,6)₃(C₅H₅N)(PMe₂Ph)], [MoH(NC₅H₄S-2)₂(SC₆H₂Prⁱ₃-2,4,6)(PEtPh₂)] and [PPh₄][MoO(SC₆H₂Prⁱ₃-2,4,6)₄], Product Details of C15H24S, the publication is Journal of the Chemical Society, Dalton Transactions: Inorganic Chemistry (1995), 5-15, database is CAplus.

[MoH(SC₆H₂R₃-2,4,6)₃(PR’Ph₂)] (1) (R = Me or Prⁱ, R’ = Me or Et) were prepared by reaction of HSC₆H₂R₃-2,4,6 with [MoH₄(PR’Ph₂)₄] or trans-[Mo(N₂)₂(Pr’Ph₂)₄]. 1 (R = Prⁱ, R’ = Me) reacted with N-donor ligands L (py, 3-Mepy, 3,5-Me₂py or C₃H₃NS) to give [MoH(SC₆H₂Prⁱ₃-2,4,6)₃L(PMePh₂)] (2). The crystal structure of the analog [MoH(SC₆H₂Prⁱ₃-2,4,6)₃(py)(PMe₂Ph)] showed the compound to have a trigonal girdle of thiolate ligands with the pyridine and PMe₂Ph ligands in essentially apical positions. Reaction of 1 (R = Prⁱ, R’ = Et) with pySH-2 gave the seven-coordinate complex [MoH(SC ₆H₂Prⁱ₃-2,4,6)(pyS-2)₂(PEtPh₂)], shown by x-ray crystallog. to have an essentially pentagonal-pyramidal geometry with the hydride located in the equatorial plane. Spectroscopic data for the compounds are discussed in terms of their structures. 1 (R = Prⁱ, R’ = Et) exchanges hydride for deuteride on treatment with deuterium gas in benzene at 20¡ã. Treatment of 1 (R = Prⁱ, R’ = Me) in MeOH with LiBEt₃H, followed by [PPh₄]Cl, gave [PPh₄][MoO(SC₆H₂Prⁱ₃-2,4,6)₄], shown by x-ray crystallog. to have an anion with square-pyramidal geometry and an apical oxide-ligand.

Journal of the Chemical Society, Dalton Transactions: Inorganic Chemistry published new progress about 22693-41-0. 22693-41-0 belongs to catalysis-chemistry, auxiliary class Other Functionalization Reagent, name is 2,4,6-Triisopropylbenzenethiol, and the molecular formula is C15H24S, Product Details of C15H24S.

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

Musacchio, Andrew J. published the artcileCatalytic intermolecular hydroaminations of unactivated olefins with secondary alkyl amines, Quality Control of 22693-41-0, the publication is Science (Washington, DC, United States) (2017), 355(6326), 727-730, database is CAplus and MEDLINE.

The intermol. hydroamination of unactivated alkenes with simple dialkyl amines remains an unsolved problem in organic synthesis. We report a catalytic protocol for efficient additions of cyclic and acyclic secondary alkyl amines to a wide range of alkyl olefins with complete anti-Markovnikov regioselectivity. In this process, carbon-nitrogen bond formation proceeds through a key aminium radical cation intermediate that is generated via electron transfer between an excited-state iridium photocatalyst and an amine substrate. These reactions are redox-neutral and completely atom-economical, exhibit broad functional group tolerance, and occur readily at room temperature under visible light irradiation Certain tertiary amine products generated through this method are formally endergonic relative to their constituent olefin and amine starting materials and thus are not accessible via direct coupling with conventional ground-state catalysts.

Science (Washington, DC, United States) published new progress about 22693-41-0. 22693-41-0 belongs to catalysis-chemistry, auxiliary class Other Functionalization Reagent, name is 2,4,6-Triisopropylbenzenethiol, and the molecular formula is C15H24S, Quality Control of 22693-41-0.

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

Nakamura, Shuichi published the artcile1,4-Asymmetric reduction of ¦Ã-keto sulfoxides bearing the 2,4,6-triisopropylphenyl group, Category: catalysis-chemistry, the publication is Perkin 1 (2000), 3143-3148, database is CAplus.

Reduction of ¦Ã-keto sulfoxides bearing the 2,4,6-triisopropylphenyl group with DIBAL gives ¦Ã-hydroxy sulfoxides with high stereoselectivity in the ratio 95:5. In comparison with the lower stereoselectivities obtained in the reaction of ¦Ã-keto sulfoxides bearing p-tolyl or 2,4,6-trimethylphenyl groups, the sterically bulky (2,4,6-triisopropylphenyl)sulfinyl group is extremely efficient in effecting high 1,4-remote asym. induction.

Perkin 1 published new progress about 22693-41-0. 22693-41-0 belongs to catalysis-chemistry, auxiliary class Other Functionalization Reagent, name is 2,4,6-Triisopropylbenzenethiol, and the molecular formula is C15H24S, Category: catalysis-chemistry.

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

Liu, Changqing published the artcileHighly Stereoselective Cationic Cyclization Assisted by a Sulfenyl Group. Scope, Limitation, and Mechanism, Quality Control of 22693-41-0, the publication is Journal of Organic Chemistry (1996), 61(2), 494-502, database is CAplus and MEDLINE.

When 8-acetoxy-2-methyl-9-(phenylthio)-2-nonene (1) was treated with an acid, followed by a base, alkylative cyclization proceeded to give a mixture of 1,2-disubstituted cyclohexanes. The stereochem. of the reaction was only slightly affected by the leaving group and the reaction conditions, such as the temperature, solvent, and acid. However, the bulkiness of the sulfenyl group had a great effect on the stereochem. course of the reaction. High trans selectivity was attained when a derivative of 1 with a bulkier sulfenyl group was used as a substrate. On the other hand, the length and rigidity of the carbon chain of the substrate also had a major effect on the stereochem. of the reaction; a high cis selectivity was observed when a one-carbon-fewer analog of 1 or a derivative with one more double bond in the carbon chain than in 1 was used as the substrate. The reaction proceeded via a 6,5- or 5,5-fused-ring intermediate. The sulfenyl-group-assisted reaction could be a useful method for the stereoselective cyclization of acetates of ¦Á-sulfenylated secondary alcs.

Journal of Organic Chemistry published new progress about 22693-41-0. 22693-41-0 belongs to catalysis-chemistry, auxiliary class Other Functionalization Reagent, name is 2,4,6-Triisopropylbenzenethiol, and the molecular formula is C15H24S, Quality Control of 22693-41-0.

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

Sifri, Renee J. published the artcilePhotocontrolled cationic degenerate chain transfer polymerizations via thioacetal initiators, Category: catalysis-chemistry, the publication is Polymer Chemistry (2020), 11(40), 6499-6504, database is CAplus.

Recent developments in photocontrolled polymerizations have facilitated the development of previously inaccessible materials. While photocontrolled radical polymerizations have been extensively studied, related processes involving cationic polymerizations are underexplored and limited to RAFT processes. In this study, we disclose a visible light, temporally controlled cationic polymerization of vinyl ethers utilizing thioacetals and a photoredox catalyst. We demonstrate a broad scope of thioacetal initiators that achieve a well-controlled polymerization by recapping propagating chains via photocatalyst turnover in combination with a degenerate chain transfer process through sulfonium intermediates. Furthermore, we show that a photocatalyst with a more reducing ground state reduction potential allows for enhanced control and excellent temporal regulation of polymerization

Polymer Chemistry published new progress about 22693-41-0. 22693-41-0 belongs to catalysis-chemistry, auxiliary class Other Functionalization Reagent, name is 2,4,6-Triisopropylbenzenethiol, and the molecular formula is C16H20N2, Category: catalysis-chemistry.

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

Chambers, Dana R. published the artcileC-O Bond Cleavage of Alcohols via Visible Light Activation of Cobalt Alkoxycarbonyls, Name: 2,4,6-Triisopropylbenzenethiol, the publication is Organometallics (2019), 38(24), 4570-4577, database is CAplus.

A strategy for the activation of C-O bonds in alcs. via a carbonylation-homolysis-decarboxylation process is described. Using readily available Co(II) porphyrin precursors, carbonylation of simple alcs. provides access to alkoxycarbonyl Co(III) complexes. Spectroscopic, crystallog., and computational methods were used to provide structural details and an estimate for the Co-C bond dissociation energy of an alkoxycarbonylcobalt(III) complex of 39.8 kcal/mol for the 1st time. Visible light irradiation in the presence of the radical trapping agent TEMPO and a thiol reducing agent demonstrates the cleavage of the alc. C-O bond under oxidative and reductive conditions, resp. Addition of a stoichiometric reducing agent allows the use of a catalytic amount of hindered thiol for the reduction of a benzylic alc. to the corresponding hydrocarbon.

Organometallics published new progress about 22693-41-0. 22693-41-0 belongs to catalysis-chemistry, auxiliary class Other Functionalization Reagent, name is 2,4,6-Triisopropylbenzenethiol, and the molecular formula is C15H24S, Name: 2,4,6-Triisopropylbenzenethiol.

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

Harmjanz, M. published the artcileNovel synthetic pathways to neutral mixed-ligand iron-sulfur clusters, Application In Synthesis of 22693-41-0, the publication is Zeitschrift fuer Naturforschung, B: Chemical Sciences (1996), 51(7), 1040-1048, database is CAplus.

The reaction of [Fe(N(SiMe₃)₂)₂] with thiols RSH, elemental S, and neutral ligands L with sulfur donor atoms (e.g. thiourea derivatives) gives [Fe₄S₄(SR)₂L₂] clusters in high yields. The structure of [Fe₄S₄(2,4,6-Pr₃C₆H₂S)₂(dpdmi)₂] (dpdmi = diisopropyldimethylimidazolethione) was determined by x-ray crystallog. When [Fe₄S₄I₄]^2- is reacted with a large excess of PMePh₂ or PMe₂Ph, [Fe₆S₆I₂(PMePh₂)₄] and [Fe₆S₆I₂(PMe₂Ph)₄], resp., are obtained in nearly quant. yield. Basket-like structures of the [Fe₆S₆]²⁺ cores were detected by x-ray structure anal. While [Fe₄S₄(SR)₄]^2- clusters do not react with phosphines at ambient temperature, 2:2 functionalized species like [Fe₄S₄(SR)₂(tmtu)₂] (tmtu = tetramethylthiourea) lead to basket-type clusters [Fe₆S₆(SR)₂(PR₃)₄].

Zeitschrift fuer Naturforschung, B: Chemical Sciences published new progress about 22693-41-0. 22693-41-0 belongs to catalysis-chemistry, auxiliary class Other Functionalization Reagent, name is 2,4,6-Triisopropylbenzenethiol, and the molecular formula is C15H24S, Application In Synthesis of 22693-41-0.

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