Regioselective cyclization of m -acylaryl 1,1-dimethylpropargyl ethers giving 5-acyl-2,2-dimethyl-2 H -chromenes
作者:Seiji Yamaguchi、Masaru Ishibashi、Kazuya Akasaka、Hajime Yokoyama、Masahiro Miyazawa、Yoshiro Hirai
DOI:10.1016/s0040-4039(00)02188-2
日期:2001.2
Thermal cyclization of some m-acylaryl 1,1-dimethylpropargyl ethers (1a f) effected regioselective orthocyclization giving the corresponding 5-acyl-2,2-dimethyl-2H-chromenes (2a-f) (C) 2001 Elsevier Science Ltd. All rights reserved.