摘要
A series of poly(ethylene glycol) biscoumarinyloxyacetates have been synthesized and their intramolecular photochemical cyclodimerizations have been studied.It was found that only syn-HT configuration products were obtained when these bisesters were directly irradiated in chloroform,and the yields of the products decreased with the increase of the chain length.This photocyclization reaction is a convenient and effective method to synthesize macrocyclic compounds.
A series of poly(ethylene glycol) biscoumarinyloxyacetates have been synthesized and their intramolecular photochemical cyclodimerizations have been studied.It was found that only syn-HT configuration products were obtained when these bisesters were directly irradiated in chloroform,and the yields of the products decreased with the increase of the chain length.This photocyclization reaction is a convenient and effective method to synthesize macrocyclic compounds.
作者
WANG,Yong-Mei DU,Da-Ming MENG,Ji-Ben ZHOU,Xiu-Zhong WANG,LeiDepartment of Chemistry,Nankai University,Tianjin 300071,China College of Chemistry,Shandong University,Jinan,Shandong 250100,China
基金
Project supported by the National Natural Science Foundation of China.
