γ-环糊精诱导的双2-萘甲酸三缩四乙二醇酯的分子内光二聚反应

摘要

Intramolecular photodimerization of 2-naphthalene-labeled poly(ethyl glycol) (N-P4-N) induced by y-cyclodextrin in aqueous solution was investigated. Regioselective and stereose-lective photodimerization of N-P4-N has been demonstrated to be controlled by y-CD, and thus giving rise to anti-head-to-head intramolecular cubane-like photodimer as the sole product with 20. 4% e.e. Value.%本文研究了在水溶液中γ-环糊精诱导双2-萘甲酸三缩四乙二醇酯(N-P4-N)的分子内光二聚反应.γ-环糊精能够控制N-P4-N光二聚反应的区域选择性和立体选择性,反应只得到反式-头头结构的分子内类立方烷光二聚体,其对映体选择性达20.4％e.e.(在0.5℃时).