FIELD: chemistry.
SUBSTANCE: method for obtaining of spiro-hem-dichlorocyclopropyl malonates is implemented by dichlorocarbenation of diethyl malonates in the presence of triethylbenzylammonium chloride at a temperature of 30°C for 5 hours.
EFFECT: increased output as well as quality of the end product.
2 cl, 1 tbl, 2 ex
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