Synthesis and Functionalization of Inherently Chiral Tetraoxacalix[2]arene[2]pyridines
作者:Shuai Pan、De-Xian Wang、Liang Zhao、Mei-Xiang Wang
DOI:10.1021/ol303019q
日期:2012.12.21
Inherently chiral tetraoxacalix[2]arene[2]pyridines containing C2 symmetry were synthesized efficiently from a macrocyclic condensation reaction of resorcinol derivatives with 2,6-dichloro-3-nitropyridine in a one-potreaction manner, while tetraoxacalix[2]arene[2]pyridine with an ABCD-substitution pattern was prepared in a good yield by means of a stepwise fragment coupling approach. Postmacrocyclization