Asymmetric Synthesis of Diarylmethyl Sulfones by Palladium-Catalyzed Enantioselective Benzylic Substitution: A Remarkable Effect of Water
作者:Atifah Najib、Koji Hirano、Masahiro Miura
DOI:10.1002/chem.201800744
日期:2018.5.2
A Pd/(R)‐BINAP‐catalyzed enantioselective benzylic sulfonation of diarylmethyl carbonates with sodium sulfinates proceeds to deliver the corresponding chiral diarylmethyl sulfones in good yields with high enantioselectivity. The reaction occurs in a dynamickineticasymmetrictransformation (DYKAT) manner and thus provides convergent access to optically active benzylic sulfones from racemic secondary
Palladium-catalyzed benzylic direct arylation of benzyl sulfones with aryl halides
作者:Takashi Niwa、Hideki Yorimitsu、Koichiro Oshima
DOI:10.1016/j.tet.2009.01.030
日期:2009.3
An effective palladium catalyst system for the direct arylation of benzyl sulfones with aryl halides has been developed. The catalytic reaction provides a facile route to diarylmethyl sulfones. The products can be transformed further via desulfonylative functionalization mediated by aluminum compounds. (C) 2009 Elsevier Ltd. All rights reserved.