U. Pindur et Ys. Kim, 1,6-PI-ELECTROCYCLIZATION OF 3-VINYL-FUNCTIONALIZED N,N'-DIMETHYL-2,2'-BISINDOLYL - SOME ANALYSIS OF THE EDUCT TRANSFORMATION PROCESS, Journal of heterocyclic chemistry, 35(1), 1998, pp. 97-101
The thermally and photochemically induced 1,6-pi-electrocyclization re
action of 3-vinyl-functionalized N,N'-dimethyl-2,2'-bisindolyls 4 has
been analysed and some reactivity aspects are presented. On the basis
of time dependent H-1 nmr and uv spectroscopic measurements the educt
transformations can be observed in detail. Some results of the isomeri
zation process of the educts are also given.