FIELD: organic chemistry. SUBSTANCE: the product: an optical isomer of 2,2-dimethylcyclopropanecarboxylic acid (α)2
D
0 which has ∓ of 145 deg/(± 1) (without a solvent). Reagent 1: 2,2-dimethylcyclopropanecarboxylic acid ester or chloride. Reagent 2: mandelic acid methyl ester. Reaction conditions: fraction crystallization from alkane followed by alkaline hydrolysis, acidification and extraction from the nonpolar solvent. EFFECT: greater efficiency of the process. 4 cl
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