Controlling photochemical geometric isomerization of a stilbene and dimerization of a styrene using a confined reaction cavity in water
Controlling photochemical geometric isomerization of a stilbene and dimerization of a styrene using a confined reaction cavity in water
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DOI：
10.1021/ol702322u
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发表时间：
2007-11-22
期刊：
影响因子：
5.2
通讯作者：
Ramamurthy, V.
中科院分区：
文献类型：
--
作者：
Parthasarathy, Anand;Kaanumalle, Lakshmi S.;Ramamurthy, V.
水溶性深腔空穴载体八酸作为反应介质的实用性通过在水中进行包含在八酸内的二苯乙烯和苯乙烯的光化学反应来说明。反式-4，4 '-二甲基二苯乙烯的几何异构化受到限制，而4-甲基苯乙烯的二聚反应在八酸空腔内得到促进。这两个系统的激发态化学是不同的，在这种介质中的有机溶剂。化学性质的变化归因于宿主腔提供的超分子效应。
Utility of a water-soluble deep cavity cavitand, octa acid, as a reaction medium is illustrated by carrying out photochemical reactions of a stilbene and a styrene included within the octa acid in water. Geometric isomerization of trans-4,4'-dimethyl stilbene is restricted while dimerization of 4-methyl styrene is facilitated within the octa acid cavity. The excited-state chemistry of both systems is different in this medium from that in organic solvents. The change in chemistry is attributed to the supramolecular effects provided by the host cavity.