Novel synthesis of some tricyclic ketones via lithium di-isopropylamidemediated cyclization of 2-o-carboxyphenyl ethenylfurans, thiophens, and selenophens
作者:A. Hallberg、P. Pedaja
DOI:10.1016/s0040-4020(01)91860-5
日期:1983.1
The syntheses of 10H-benzo[4,5]cyclohepta[2, 1-b]-thiophen-10-one 10H-benzo[4,5]cyclohepta[2,1-b]selenophen-10-one, and 10H-benzo[4,5]cyclohepta[2, 1-b]furan-10-one(1a-c) by lithiumdiisopropylamide-induced cyclization of (Z)-2-[2-(3-thienyl)-vinyl]benzoic acid, (Z)-2-[2-(3(selenienyl)vinyl]benzoic acid and (Z)-2-[2-(3-furano)vinyl]benzoic acid (2a-c), respectively, are reported.
10H-苯并[4,5]环庚[2,1 - b ]-噻吩-10-酮的合成10H-苯并[4,5]环庚[2,1 - b ]硒苯酚-10-酮和10H-二异丙基氨基锂诱导的(Z)-2- [2-(2-噻吩基)-乙烯基]苯甲酸环化反应生成苯并[4,5]环庚[2,1 - b ]呋喃-10-酮(1a-c),分别报道了(Z)-2- [2-(3-(硒烯基)乙烯基]苯甲酸和(Z)-2- [2-(3-呋喃基)乙烯基]苯甲酸(2a-c)。