Truxinic acids are any of several stereoisomeric cyclic dicarboxylic acids with the formula (C6H5)2C4H4(COOH)2, found in various plants. They are obtained by a photochemical cycloaddition from cinnamic acid, where the two trans alkenes react head-to-head.
Isomers Ten stereoisomers are possible. Of these, the ω and β isomers are meso compounds, while the others form pairs of enantiomers.
Truxinic acid isomersIsomerabcdefω-truxinic acidC6H5HCOOHHCOOHHβ-truxinic acidC6H5HHCOOHHCOOHneo-truxinic acidC6H5HCOOHHHCOOHζ-truxinic acidHC6H5COOHHCOOHHμ-truxinic acidHC6H5HCOOHCOOHHδ-truxinic acidHC6H5COOHHHCOOH
See also Truxillic acids, which are isomers of the truxinic acids
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