PRODUCTION OF 1-N,N-DIMETHYLCARBAMOYL-5 - METHYL - 3 - N,N-DIMETHYL-CARBAMOYLOXY-PYRAZOLE

Pure 2 - dimethylcarbamyl - 3 - methylpyrazolyl -(5) - N,N - dimethyl carbamic acid ester is obtained by reacting, if desired in the presence of an acid binding agent, 3-methylpyrazolene-(5) or a metal salt thereof with at least one mol. of dimethyl carbamic acid chloride, and then reacting the reac...

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Bibliographic Details
Main Authors HEINRICH URWYLER, THEODOR GRAUER
Format Patent
LanguageEnglish
Published 24.06.1969
Subjects
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Summary:Pure 2 - dimethylcarbamyl - 3 - methylpyrazolyl -(5) - N,N - dimethyl carbamic acid ester is obtained by reacting, if desired in the presence of an acid binding agent, 3-methylpyrazolene-(5) or a metal salt thereof with at least one mol. of dimethyl carbamic acid chloride, and then reacting the reaction product first with phosgene and then with dimethylamine.
Bibliography:Application Number: USD3452043