Rhenium- and Manganese-Catalyzed Synthesis of Aromatic Compounds from 1,3-Dicarbonyl Compounds and Alkynes
作者:Yoichiro Kuninobu、Mitsumi Nishi、Atsushi Kawata、Hisatsugu Takata、Yumi Hanatani、Yudha S. Salprima、Aya Iwai、Kazuhiko Takai
DOI:10.1021/jo902072q
日期:2010.1.15
methylene moiety, and terminal alkynes. This reaction proceeds with high regioselectivity when aryl acetylenes are employed as the alkyne component. The second approach is a rhenium- or manganese-catalyzed formal [2+1+2+1] cycloaddition between β-keto esters and two kinds of alkynes. In this reaction, the aromatic compounds are obtained by the following reaction sequence: (1) insertion of the first alkyne