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ABSTRACT
A regioselective formation of ethyl pyrrole-2-carboxylates 4 and 5 is effected by reductive condensation of enaminones 1a–f and ethyl 2-oximinoacetoacetate 2. The structures of the products have been delineated by spectroscopic methods.
ACKNOWLEDGMENT
The author is deeply indebted to Alexander von Humboldt Foundation for award of a research fellowship at Duisburg University (Germany).