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Dimethyl acetylenedicarboxylate (DMAD) is the organic compound with the formula CH3O2CC2CO2CH3. This alkyne, which exists as a liquid at room temperature, is highly electrophilic. As such, DMAD, as it is commonly called in the laboratory, is widely employed as a dienophile in cycloaddition reactions, such as the Diels-Alder reaction. It is also a potent Michael acceptor.
Additional recommended knowledge
Although inexpensively available, DMAD is prepared today as it was originally. Maleic acid is brominated and the resulting dibromosuccinic acid is dehydrohalogenated. The dicarboxylic acid is then esterified with methanol and sulfuric acid as a catalyst.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Dimethyl_acetylenedicarboxylate". A list of authors is available in Wikipedia.|