Synthesis and structure of N -substituted aryl(hetaryl)spiropyrrolidones
RUSSIAN JOURNAL OF GENERAL CHEMISTRY（2014）
Abstract
4,4′-Diaryl-3,3′-spirobi[2-pyrrolidones] were synthesized by hydrogenation of N -substituted 3-methoxycarbonyl-3-(2-nitro-1-arylethyl)-4-phenyl-2-pyrrolidones followed by intramolecular heterocyclization. Structure of the compounds obtained was determined by IR, 1 H, and COSY NMR spectroscopy.
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Key words
2-pyrrolidone,spirobi[2-pyrrolidone],catalytic hydrogenation,heterocyclization
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