Zinc-mediated Reductive Dimerization Cyclization of Ethyl Arylmethylidene cyanoacetates in Aqueous Media

Zinc-mediated reductive dimerization–cyclization of ethyl arylmethylidenecyanoacetates occurs to give diethyl 2-amino-3-cyano-4,5-diaryl-1,3-cyclopentenedicarboxylates in moderate to good yields the trans, trans-form isomer being the major product.

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