Synthesis, X-ray analysis and photophysical properties of a new N-containing pentacyclic helicene

…, F Aloui, S Moussa, M Tounsi, J Marrot, BB Hassine

文献索引：Ben Braiek, Mourad; Aloui, Faouzi; Moussa, Souad; Tounsi, Moncef; Marrot, Jerome; Ben Hassine, Bechir Tetrahedron Letters, 2013 , vol. 54, # 40 p. 5421 - 5425

全文：HTML全文

被引用次数: 10

摘要

Abstract A new helically chiral pentacyclic system containing one pyrrole ring was prepared in a good yield and purity via a three-step sequence involving Heck coupling and classical oxidative photocyclization. X-ray crystal structure analysis indicated that the conformation resembled that of unsubstituted pentahelicene, the idealized symmetry of which is C 2. The optical properties of the pentacyclic helicene were investigated and show interesting ...