Reaction of 1-Antipyryl-4-aroyl-5-methoxycarbonyl-1H-pyrrole-2,3-diones with N,N′-Diphenylguanidine

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发表日期：

2024年4月1日

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V. A. Lyadov,
N. V. Shavrina,
E. S. Denislamova,
A. N. Maslivets

摘要

Abstract

Methyl 3-aroyl-2-chloro-1-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)-4,5-dioxo-4,5-dihydro-1H-pyrrole-2-carboxylates reacted with N,N′-diphenylguanidine to give 9-aroyl-8-hydroxy-2-imino-6-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)-1,3-diphenyl-1,3,6-triazaspiro[4.4]non-8-ene-4,7-diones whose structure was confirmed by ¹H NMR and IR-spectroscopy.