Process for the preparation of stilbenedicarboxylate derivatives

Details Process for the preparation of stilbenedicarboxylate derivatives Process for the preparation of stilbenedicarboxylate derivatives

1987-10-07

1988-12-06

Lone, Werren B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

560 77, 560 86, 560 96, C07C 6752, C07C 6739

Patent

active

047897554

ABSTRACT:
Disclosed is a process for producing dimethyl or novel diphenyl derivatives of stilbenedicarboxylic acids from dimethyl toluates or diphenyl toluates and sulfur. The reaction requires an excess of toluate to sulfur of at least about 5:1. In addition hydrogen sulfide is removed from the reaction zone.

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patent: 3953498 (1976-04-01), Hartle
W. J. Jackson and J. C. Morris, Journal of Applied Polymer Science: Applied Polymer Symposium 41, 307-326, (Dec. 1985).
W. G. Toland, Jr., J. B. Wilkes and F. J. Brutschy, J. Am. Chem. Soc., 75, 2263-2264, (May 1953).
W. G. Toland, Jr., and J. B. Wilkes, J. Am. Chem. Soc., 76, 307-308, (Jan. 1954).
Walter Friedmann, Ber., 49, 277-284, 1352-1355, 1551-1554, (1916).
Chemical Abstracts, vol. 16, No. 10, pp. 1580-1582, May 1922.

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