Calixpyrrole-like mixed cyclic oligomers containing bithiophenes and pyrroles have been synthesized by condensing hybrid oligopyrrolic precursors. Condensation of 1,7-bis[(alpha-hydroxy-alpha,alpha-diethyl)bithiophene with oligopyrroles afforded a mixture of large cyclic oligomers. (C) 2002 Elsevier Science Ltd. All rights reserved.
Convenient Route to Super-Expanded Calixpyrroles: Synthesis of Calix[<i>n</i>]furano[<i>m</i>]pyrroles (<i>n</i> = 3, 4, 6, 8 and <i>m</i> = 2, 4)
作者:Nagarajan Arumugam、Yong-Sung Jang、Chang-Hee Lee
DOI:10.1021/ol0063196
日期:2000.10.1
meso-Alkylporphyrinogen-like cyclic oligomers containing furans and pyrroles have been synthesized by "3 + 2" and "4 + 2" approaches. Condensation of 5,5,10,10,15,15-hexaethyl-21, 22-dioxatetrapyrromethane with 2,5-bis[(alpha-hydroxy-alpha, alpha-dimethyl)furan] resulted in the formation of cyclichexamer and cyclic dodcamer. Effects of catalysts, temperature, inorganic additives, solvent, and reaction