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
A Novel Isobenzofuran Derivative Undergoing Photovalence Isomerization
作者:Sadao Miki、Masahiro Yoshida、Zen-ichi Yoshida
DOI:10.1246/bcsj.65.932
日期:1992.3
4,5,6-Tri-t-butylisobenzofuran (1) and 4,5,7-tri-t-butylisobenzofuran have been synthesized. They were stable infinitely in solutions at room temperature. Upon irradiation, 1 undergoes photovalence isomerization to afford 2,3,4-tri-t-butyl-8-oxatetracyclo [4.3.0.02,4.03,5]nona-1(9),6-diene.
Synthesis and photochemical reaction of a stable isobenzofuran derivative
作者:Sadao Miki、Masahiro Yoshida、Zen-ichi Yoshida
DOI:10.1016/s0040-4039(01)80334-8
日期:——
4,5,7-Tri-t-butylisobenzofuran () was synthesized as a stable and electronically unperturbed derivative of isobenzofuran. Photolysis of gave (3,4,6-tri-t-butylbenzo)-cyclopropene-3-carbaldehyde () as a primary product and not Dewar isobenzofuran.