Diels–Alder approach to biaryls (DAB): Importance of the ortho-nitro moiety in the [4 + 2] cycloaddition
作者:Bradley O. Ashburn、Rich G. Carter
DOI:10.1039/b714893c
日期:——
A series of nitrophenyl acetylenes were evaluated for their utility in a cycloadditionâcycloreversion approach to polysubstituted biaryls. ortho-Nitrophenyl acetylene consistently provided the target biaryls in superior yields as compared to the meta and paranitro substituted variants.