title: Synthesis and characterization of pyrrolidin-2-one fused N-confused calix[4]phyrins.
abstract: [reaction: see text] A facile method for the synthesis of pyrrolidin-2-one fused N-confused calix[4]phyrins is provided by reactions of 5,10,15,20-tetraaryl-2-aza-21-carbaporphyrin with acyl chlorides in the presence of triethylamine. The (1)H NMR and UV-vis spectra of products indicate their loss of macrocyclic aromaticity.
authors.affiliation: CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, P.R. China.
authors.forename: Xiaofang
authors.initials: X
authors.lastname: Li
authors.forename: Piotr J
authors.initials: PJ
authors.lastname: Chmielewski
authors.forename: Junfeng
authors.initials: J
authors.lastname: Xiang
authors.forename: Jialiang
authors.initials: J
authors.lastname: Xu
authors.forename: Yuliang
authors.initials: Y
authors.lastname: Li
authors.forename: Huibiao
authors.initials: H
authors.lastname: Liu
authors.forename: Daoben
authors.initials: D
authors.lastname: Zhu