Unusual access to 5-methoxy or 5,5-dimethoxy-4-methyl-3-pyrrolin-2-ones from chlorinated 4-methyl-pyrrolidin-2-ones

Franco Bellesia,Laurent De Buyck,Maria V. Colucci,Franco Ghelfi,Inge Laureyn,Emanuela Libertini,Adele Mucci,Ugo M. Pagnoni,Adriano Pinetti,Tina M. Rogge,Christian V. Stevens

Tetrahedron Letters（2010）

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摘要

The reaction of N-substituted 4-methyl-2-pyrrolidinones, carrying not less than two chlorine atoms on the C(3) and C(6) carbons afforded with alkaline methoxide in methanol, under mild conditions, the corresponding 5-methoxy or 5,5-dimethoxy-4-methyl-3-pyrrolin-2-ones in satisfactory yields.

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关键词

pyrrolidinones,pyrrolinones,lactams,eliminations

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