Thiaheterohelicenes. 2. Synthesis of Alkylated Thiaheterohelicenes.
摘要:
The alkylated thiaheterohelicenes 1,2,3,4,6,7,9,10,11,12-decamethyl-5,8-dithia[5]helicene 1 and 6,7,9,10,12,13-hexamethyl-5,8,11,14-tetrathia[9]helicene 2 have been prepared by oxidative photolysis of 1,2-diaryl-substituted ethenes. The symmetrical ethenes used in the procedures were prepared by McMurry coupling. Unsymmetrical tetrasubstituted ethenes were obtained by nucleophilic addition of lithium arylates to 3-arylbutan-2-one and dehydration.
DOI:
10.3891/acta.chem.scand.50-0077
作为产物:
描述:
2-(4,5,6,7-tetramethylbenzothiophen-2-yl)-3-(thien-2-yl)but-2-ene 在
air 、 碘 作用下,
以
甲苯 为溶剂,
以76%的产率得到4,5,7,8,9,10-hexamethylthieno<3,2-a>dibenzothiophene
参考文献:
名称:
Thiaheterohelicenes. 2. Synthesis of Alkylated Thiaheterohelicenes.
摘要:
The alkylated thiaheterohelicenes 1,2,3,4,6,7,9,10,11,12-decamethyl-5,8-dithia[5]helicene 1 and 6,7,9,10,12,13-hexamethyl-5,8,11,14-tetrathia[9]helicene 2 have been prepared by oxidative photolysis of 1,2-diaryl-substituted ethenes. The symmetrical ethenes used in the procedures were prepared by McMurry coupling. Unsymmetrical tetrasubstituted ethenes were obtained by nucleophilic addition of lithium arylates to 3-arylbutan-2-one and dehydration.