Preparation of N-substituted carbamates

Details Preparation of N-substituted carbamates Preparation of N-substituted carbamates

1978-06-05

1979-04-03

Torrence, Dolph H.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260453P, 560 24, 560 32, 560115, 560157, 560163, C07C12504

Patent

active

041477162

ABSTRACT:
A method of preparing an N-substituted carbamate comprising reacting by heating in sulfolane at a temperature ranging from about 65.degree. C. to about 100.degree. C. (1) an alkali metal cyanate, (2) at least one sulfolane-soluble organic halide of the formula RX wherein X is halogen and R represents a radical selected from the group consisting of alkyl, alkenyl, aralkyl and aralkenyl, and (3) at least one sulfolane-soluble non-aromatic monohydric or polyhydric alcohol, and isolating the N-substituted carbamate thereby produced from the resulting reaction mass.

REFERENCES:
patent: 2647916 (1953-08-01), Kaiser

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