76996-40-2Relevant articles and documents
A facile and versatile electro-reductive system for hydrodefunctionalization under ambient conditions
Huang, Binbin,Guo, Lin,Xia, Wujiong
supporting information, p. 2095 - 2103 (2021/03/26)
A general electrochemical system for reductive hydrodefunctionalization is described, employing the inexpensive and easily available triethylamine (Et3N) as a sacrificial reductant. This protocol is characterized by facile operation, sustainable conditions, and exceptionally wide substrate scope covering the cleavage of C-halogen, N-S, N-C, O-S, O-C, C-C and C-N bonds. Notably, the selectivity and capability of reduction can be conveniently switched by simple incorporation or removal of an alcohol as a co-solvent.
Iron-catalyzed cross-coupling reactions of alkyl grignards with aryl sulfamates and tosylates
Agrawal, Toolika,Cook, Silas P.
supporting information, p. 96 - 99 (2013/03/28)
The iron-catalyzed cross-coupling of aryl sulfamates and tosylates has been achieved with primary and secondary alkyl Grignards. This study of iron-catalyzed cross-coupling reactions also examines the isomerization and β-hydride elimination problems that are associated with the use of isopropyl nucleophiles. While a variety of iron sources were competent in the reaction, the use of FeF3·3H2O was critical to minimize nucleophile isomerization.
Tetra-ortho-substituted biaryls through palladium-catalyzed suzuki miyaura couplings with a diaminochlorophosphine ligand
Ackermann, Lutz,Potukuchi, Harish K.,Althammer, Andreas,Born, Robert,Mayer, Peter
supporting information; experimental part, p. 1004 - 1007 (2010/06/16)
Chemical Equetion Presentation A palladium complex derived from a sterically hindered diaminochlorophosphine allowed for Suzuki-Miyaura cross-couplings of chloroarenes with ample scope and provided access to tetra-ortho-substituted bi(hetero)aryls.
Palladium-catalyzed Suzuki-Miyaura cross-couplings of aryl tosylates with potassium aryltrifluoroborates
Zhang, Liang,Meng, Tianhao,Wu, Jie
, p. 9346 - 9349 (2008/03/12)
(Chemical Equation Presented) Pd-catalyzed Suzuki-Miyaura cross-coupling reaction of aryl tosylates with potassium aryl trifluoroborate in the presence of bulky and electron-rich phosphine ligand is described. In addition, a useful chemoselective coupling of an aryl chloride in the presence of a tosyloxy group was demonstrated.
The first general palladium catalyst for the Suzuki-Miyaura and carbonyl enolate coupling of aryl arenesulfonates
Nguyen, Hanh Nho,Huang, Xiaohua,Buchwald, Stephen L.
, p. 11818 - 11819 (2007/10/03)
The first general method for the palladium-catalyzed Suzuki-Miyaura and carbonyl enolate coupling of unactivated aryl arenesulfonates was developed utilizing XPhos, 1, and Pd(OAc)2. This is of significant interest because aryl tosylates and aryl benzenesulfonates are more easily handled and considerably less expensive than aryl triflates. This catalyst system effects the coupling of a variety of aryl, heteroaryl, and extremely hindered arylboronic acids with different aryl tosylates, under mild conditions. The same catalyst was employed in the first carbonyl enolate coupling of aryl arensulfonates. Copyright
Palladium-catalyzed alkoxycarbonylation of aryl p-toluenesulfonate
Kubota, Yoshihiro,Nakada, Shigekuni,Sugi, Yoshihiro
, p. 183 - 185 (2007/10/03)
Methyl- and ethyl arylcarboxylates were synthesized by palladium-catalyzed alkoxycarbonylation of various aryl p-toluenesulfonates (tosylates). Yields were highly dependent on the substituent of aryl tosylates and phosphine ligands used. Ethoxycarbonylation of 4-acetylphenyl tosylate by the use of a bisphosphine ligand gave ethyl 4-acetylbenzoate in quite satisfactory yields.
Facile Deoxygenation of Phenols and Enols Using Sodium Borohydride-Nickel Chloride
Wang, Feng,Chiba, Kazuhiro,Tada, Masahiro
, p. 1897 - 1900 (2007/10/02)
A facile deoxygenation reaction of phenol and 1,3-dicarbonyl compounds was investigated.Phenols, enolizable 1,3-diketones and 3-ketoesters were converted into the toluene-p-sulfonates which were reduced by a sodium borohydride-nickel chloride system to give the deoxygenated aromatic compounds, alcohols and esters, respectively.