Cyclodehydrogenation of N-benzylidene-o-phenylenediamines to 2,2'-diaryl-1,1'-bibenzimidazoles with dioxygen catalyzed by copper(I) chloride in pyridine. A structural study of 2,2'-bis(3,4,5-trimethoxyphenyl)-1,1'-bibenzimidazole

Novel copper(I) chloride-assisted coupli

Novel copper(I) chloride-assisted coupling reaction of 1-chloro-1-aryloyl-3,3-diarylallene to afford 3,7-dioxa-2,6-diaryl-4,8-bis(diarylmethylene)bicyclo[3.3.O]octa-1,5-diene and 1,1,4,4-tetraaryl-3,6-diaryloylhexa-1,2-diene-5-yne, and thermal cyclization of the latter to a fulvene

✍ Fumio Toda; Masataka Yamamoto; Koichi Tanaka; Thomas C.W. Mak 📂 Article 📅 1985 🏛 Elsevier Science 🌐 French ⚖ 240 KB

A novel C&l-assisted coupling reaction 9f i-chloro-l-aryloyl-3,3-diarylallene (2) and two new thermal cyclization reactiom ti,P 1,1,4,4-tetraaryl-3,6-diaryloylhexa-1,2-diene-5-yne (L) are described.