Palladium Catalyzed Aryl(alkyl)thiolation of Unactivated Arenes
作者:Perumal Saravanan、Pazhamalai Anbarasan
DOI:10.1021/ol4036209
日期:2014.2.7
palladium-catalyzed aryl(alkyl)thiolation of various substituted unactivated arenes is accomplished for the synthesis of diverse unsymmetrical diaryl(alkyl) sulfides in good yield employing electrophilic sulfur reagent 6 derivedfrom succinimide. The developed strategy was coupled with intramolecular arylation of a C–H bond to afford dibenzothiphene derivatives, an important moiety in material science as organic
A simple and an efficient procedure for the formation of diaryl sulfides via direct sp2 C–H functionalization have been developed from simple and readily available thiophenols and substituted methoxy benzenes. In this process thiophenols were used as the sulfur source. In this transformation broad range of functional groups were well tolerated in good to excellent yields.
An environmentally benign method for the synthesis of aryl sulfides in water under mild conditions has been realized, in which arenes are coupled with equal stoichiometry of allyl sulfides. This arylthiolation is enabled by the presence of the Lipshutz surfactant, TPGS-750-M, using water as the recyclable reaction medium.
A metal- and oxidant-free electrochemical synthesis of aryl sulfides was developed through a C–H sulfidation reaction of arenes and disulfides. Compared with traditional organic synthesis methods, this direct electrochemical approach efficiently generates aryl sulfides under catalyst- and oxidant-free conditions with the superiorities of wide substrate compatibility, mild reaction condition and waster