Palladium-Catalyzed Selective 2,3-Diarylation of α,α-Disubstituted 3-Thiophenemethanols via Cleavage of C−H and C−C Bonds
作者:Masaya Nakano、Tetsuya Satoh、Masahiro Miura
DOI:10.1021/jo061412e
日期:2006.10.1
α,α-Disubstituted 3-thiophenemethanols undergo selective diarylation accompanied by cleavage of the C−H and C−C bonds of the 2- and 3-positions, respectively, upon treatment with aryl bromides in the presence of a palladium catalyst to give the corresponding 2,3-diarylthiophenes in good yields.
在钯催化剂的存在下,用芳基溴化物处理后,α,α-二取代的3-thiophenemethanols进行选择性二芳基化,并分别裂解2位和3位的C-H和C-C键。相应的2,3-二芳基噻吩,收率很高。