FIELD: organic chemistry, chemical technology.
SUBSTANCE: invention relates to a novel method for synthesis of dioxaneacetic acid esters of the formula (1): 
wherein R1 represents a leaving group, -CN, -OH or group -COOR5; each R3 and R4 represents independently (C1-C3)-alkyl group; each R2 and R5 means independently ester residue. Method involves interaction of a corresponding salt of the formula (2): 
wherein M represents hydrogen atom (H) or alkaline (alkaline-earth) metal with chloroanhydride-forming agent in inert solvent to form corresponding chloroanhydride. Then this chloroanhydride reacts with alcohol of the formula R2OH in the presence of N-methylmorpholine. Preferably, M represents alkaline metal, and R2 represents alkyl group, in particular, tert.-butyl group. Invention provides increasing the yield of the end substance.
EFFECT: improved method of synthesis.
11 cl, 6 ex
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