Synthesis of Mono and Disubstituted Maleic Anhydrides from Di-tert-Butyl Acetylene Dicarboxylate: Synthetic Communications: Vol 20, No 16

Synthetic Communications

An International Journal for Rapid Communication of Synthetic Organic Chemistry

Volume 20, 1990 - Issue 16

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Abstract

Addition of organocopper reagent RCu(Me₂S), MgBr₂ to acetylenic esters gives vinylcopper complex which reacts with various electrophiles to afford mono and disubstituted maleates. Deprotection of substituted maleates and dehydration provide the corresponding maleic anhydride in good yield.

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Synthesis of Mono and Disubstituted Maleic Anhydrides from Di-tert-Butyl Acetylene Dicarboxylate

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Synthesis of Mono and Disubstituted Maleic Anhydrides from Di-tert-Butyl Acetylene Dicarboxylate

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