Organic letters

Photoisomerization of ionic liquid ammonium cinnamates: one-pot synthesis− isolation of Z-cinnamic acids

ML Salum, CJ Robles, R Erra-Balsells

文献索引：Salum, Maria L.; Robles, Cecilia J.; Erra-Balsells, Rosa Organic Letters, 2010 , vol. 12, # 21 p. 4808 - 4811

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被引用次数: 40

摘要

Photoisomerization presents the only direct method for contra-thermodynamic E− Z isomerization of olefins. Synthetic applications of this method have been limited by its reversible nature, which leads to a photostationary-state mixture of both isomers. For the first time, a highly efficient one-pot preparation− isolation of solid ionic liquid Z-cinnamic acids by photoisomerization in acetonitrile solution of ionic liquid E-cinnamic acids is described.