Preparation of 4,7-Dibromobenzo[<i>b</i>]thiophene as a Versatile Building Block and Synthetic Application to a Bis(ethynylthienyl)oligoarene System
作者:Takuya Yamamoto、Hiroshi Katsuta、Kozo Toyota、Takeaki Iwamoto、Noboru Morita
DOI:10.1246/bcsj.20100345
日期:2012.5.15
Benzo[b]thiophene, 4,7-dibromobenzo[b]thiophene, thieno[3,2-b]thiophene, and 3-bromothieno[3,2-b]thiophene were prepared by AuCl-catalyzed cyclization of (t-butylsulfanyl)(ethynyl)benzenes or (t-butylsulfanyl)(ethynyl)thiophenes. Several reactions of 4,7-dibromobenzo[b]thiophene were investigated, including metallation and cross coupling reactions.
苯并[b]噻吩、4,7-二溴苯并[b]噻吩、噻吩并[3,2-b]噻吩和3-溴噻吩并[3,2-b]噻吩通过AuCl催化的(叔丁硫基)(炔基)苯或(叔丁硫基)(炔基)噻吩的环化反应制备。对4,7-二溴苯并[b]噻吩的多种反应进行了研究,包括金属化和交叉偶联反应。