Methyl chloroformate → HCID 20551614, compound

Participants

Reaction Steps

A mixture of 5.6 g of triethylamine, 13 g of 3-(2',3'-dimethylphenoxy)-5-methyl-4-methoxycarbonyl pyrazole and 100 ml of tetrahydrofuran is prepared, and, while stirring and cooling, 4.9 g of methyl chlorocarbonate is dripped in. After stirring for 16 hours, the precipitated hydrochloride is filtered off. The filtrate is concentrated and the residue is recrystallized from ethyl acetate. Melting point: 115° C.

Provenance & Evidence