The 1,4- and 2,3-dimethyl esters of benzene-1,2,3,4-tetracarboxylic acid, a degradation product of viridin, have been prepared and the 1,4-diester has been subjected to Hunsdiecker decarboxylation. The structure of the product, methyl 2,3-dibromoterephthalate, has been established by synthesis of the isomeric dibromoterephthalic esters.
M. M. Blight, J. J. W. Coppen and J. F. Grove, J. Chem. Soc. C, 1969, 552 DOI: 10.1039/J39690000552
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