PROCESS FOR THE PREPARATION OF STILBENEDICARBOXYLATE DERIVATIVES

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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Hauptverfasser: VAN SICKLE, DALE E, MCCALL, MARVIN A, WALKER, THEODORE R., JR, MORRIS, JOHN C, FLEISCHER, JEAN C
Format: Patent
Sprache:eng ; fre
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Zusammenfassung: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.