Truxillic acid

Truxillic acids are any of several crystalline stereoisomeric cyclic dicarboxylic acids with the formula (C6H5)2C4H4(COOH)2. They are colorless solids. These compounds are obtained by the photocycloadditions of cinnamic acid where the two trans alkenes react head-to-tail. The isolated stereoisomers are called truxillic acids. Truxillic acids are any of several crystalline stereoisomeric cyclic dicarboxylic acids with the formula (C6H5)2C4H4(COOH)2. They are colorless solids. These compounds are obtained by the photocycloadditions of cinnamic acid where the two trans alkenes react head-to-tail. The isolated stereoisomers are called truxillic acids. These compounds are found in a variety of plants, for example in coca. Incarvillateine, an alkaloid from the plant Incarvillea sinensis, is a derivative of α-truxillic acid. Upon heating, truxillic acids undergo cracking to give cinnamic acid. Truxillic acid can exist in five isomers.