Azabutadiene derivatives in the synthesis of five-membered heterocycles. Unequivocal synthesis of 1H-pyrrole-2-carboxylates

J Barluenga, V Rubio, V Gotor

Index: Barluenga, Jose; Rubio, Victor; Gotor, Vicente Journal of Organic Chemistry, 1982 , vol. 47, # 9 p. 1696 - 1698

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Citation Number: 20

Abstract

-HC, syntheses are more useful for obtaining 3-carbonylpyrroles but less so for pyrrole-2- carboxylates. The above-described method allows us to obtain in a regioselective manner 3, 5-diarylpyrrole-2-carboxylates, whose difficult availability has already been reported, ll as well as 3-arylpyrrole-2-carboxylates, which are one of the most important intermediates for the synthesis of pyrrolnitrin. 12 The high yields obtained in all instances (see Table I) and ...