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Process for the preparation of 3,3-dimethyl-cyclopropane-1,2-dicarboxylic acid esters
Process for the preparation of 3,3-dimethyl-cyclopropane-1,2-dicarboxylic acid esters
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机译:制备3,3-二甲基-环丙烷-1,2-二羧酸酯的方法
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摘要
A novel process for the preparation of known 3,3-dimethylcyclopropane-1,2-dicarboxylic acid esters of the formula I IMAGE in which R' and R have the meaning indicated in the description, which is characterised in that 1,3-dibromo-2,2-dimethylpropane-1,3-dicarboxylic acid esters of the formula II IMAGE are reacted at temperatures between 20 and 200 DEG C with zinc, if appropriate in the presence of a diluent.
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