Synthesis and photoreaction of 4,5,7-tri-t-butyl benzo[c]thiophene: A novel benzo[c]thiophene derivative and its Dewar isomer
作者:Reda M. El-Shishtawy、Koushi Fukunishi、Sadao Miki
DOI:10.1016/0040-4039(95)00506-8
日期:1995.5
4,5,7-Tri-t-butylbenzo[c]thiophene (1) has been successfully synthesized via cyclic sulfite (7) in high yield. Upon irradiation, 1 undergoes photovalence isomerization to afford the 3,4,6-tri-t-butylbenzo[1,2]cyclobutene sulfide (2) as a first example of Dewar benzo[c]thiophene.
通过环状亚硫酸盐(7)已成功高产率地合成了4,5,7-三叔丁基苯并[ c ]噻吩(1)。辐射后,1进行光价异构化,得到3,4,6-三叔丁基苯并[1,2]环丁烯硫化物(2),作为杜瓦苯并[ c ]噻吩的第一个例子。
MIKI, SADAO;YOSHIDA, MASAHIRO;YOSHIDA, ZEN-ICHI, TETRAHEDRON LETT., 30,(1989) N 1, C. 103-104