51657-90-0Relevant academic research and scientific papers
B2cat2-Mediated Reduction of Sulfoxides to Sulfides
Takahashi, Fumiya,Nogi, Keisuke,Yorimitsu, Hideki
supporting information, p. 3009 - 3012 (2020/03/25)
An efficient and operationally simple method for the reduction of sulfoxides to sulfides has been developed using bis(catecholato)diboron (B2cat2) as a reducing agent. The present method accommodates various functional groups which are generally prone to reduction: halides, alkynes, carbonyls, nitriles, and heterocycles are totally intact, and only sulfoxide moieties undergo reduction chemoselectively. Moreover, the remaining diboron and the resulting boron-containing wastes are readily removable, the practicality of this protocol being thus demonstrated.
Rhodium-Catalyzed ipso-Borylation of Alkylthioarenes via C-S Bond Cleavage
Uetake, Yuta,Niwa, Takashi,Hosoya, Takamitsu
supporting information, p. 2758 - 2761 (2016/06/15)
Rhodium-catalyzed transformation of alkyl aryl sulfides into arylboronic acid pinacol esters via C-S bond cleavage is reported. In combination with transition-metal-catalyzed sulfanyl group-guided regioselective C-H borylation reactions of alkylthioarenes, this method allows the synthesis of a diverse range of multisubstituted arenes.
Meta Functionalization of Anilines and Phenol
Fukui, Mineo,Ikeda, Toshiya,Oishi, Takeshi
, p. 466 - 475 (2007/10/02)
Base-promoted proton abstraction from ?-(N-tert-butyldimethylsilyl-N-methylaniline)chromium tricarbonyl (3) took place predominantly at the meta position and variously meta-substituted N-methylacetanilides 4 were obtained after reactions with electrophiles followed by oxidative decomplexation and N-acetylation.Application of the present method to variously N,N-disubstituted anilines 5 and phenols 7 was then examined and the corresponding meta substituted anilines 6 and phenol 9 were obtained.Keywords - metalation of aromatic ring; chromium tricarbonyl complex; tert-butyl dimethylsilyl protecting group; meta-substituted anilines; meta-substituted phenol; electrophilic substitution
META FUNCTIONALIZATION OF ANILINES AND PHENOL
Fukui, Mineo,Ikeda, Toshiya,Oishi, Takeshi
, p. 1605 - 1608 (2007/10/02)
Regioselective introduction of various functional groups on the meta-position of anilines and phenol was achieved by proton abstraction from chromium tricarbonyl complexes 3,5,7 with n-BuLi, followed by the addition of electrophiles and decomplexation.
