IMPROVED SYNTHESIS AND REACTION OF DIMETHYL A-(BROMOMETHYL) FUMARATE WITH PRIMARY AMINES

INDIAN JOURNAL OF CHEMISTRY SECTION B-ORGANIC CHEMISTRY INCLUDING MEDICINAL CHEMISTRY（1997）

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摘要

Dimethyl alpha-(bromomethyl) fumarate (2) has been prepared in one pot by addition of bromine to dimethyl itaconate and dehydrobromination with triethylamine. The allylic bromide 2, reacts with primary amines via two successive allylic substitutions and followed by lactamization at a high temperature (above 150 degrees C) to give 4-methoxycarbonyl-1-N-alkyl-Delta(3)-pyrrolin-2-ones (7) in good yields.

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关键词

primary amines,dimethyl,improved synthesis

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