Process for the preparation of stilbenedicarboxylate...

Details Process for the preparation of stilbenedicarboxylate... Process for the preparation of stilbenedicarboxylate...

C - Chemistry, Metallurgy

07

C

260/473.8

C07C 69/76 (2006.01) C07C 67/52 (2006.01)

Patent

CA 1328278

ABSTRACT OF THE DISCLOSURE 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.

579148

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