Thiaheterohelicenes. 1. Synthesis of Unsubstituted Thia[5]-, [9]- and [13]heterohelicenes.
摘要:
The unsubstituted thiaheterohelicenes, 5,8-dithia[5]helicene, 1, 5,8,11,14-tetrathia[9]helicene, 2, and 5,8,11, 14,17,20-hexathia[13]helicene, 3, have been prepared. The key reaction was the oxidative photolysis of 1,2-diaryl-substituted ethenes which were prepared by Wittig-Horner or McMurry reactions.
作者:Eun Kee Cho、Phong K. Quach、Yunfei Zhang、Jae Hun Sim、Tristan H. Lambert
DOI:10.1039/d1sc06234d
日期:——
Hydrazine catalysis enables the ring-closing carbonyl–olefin metathesis (RCCOM) to form polycyclic heteroaromatics, especially those with basic functionality.