Process for the preparation of asymmetrically substituted ureas,

Details Process for the preparation of asymmetrically substituted ureas, Process for the preparation of asymmetrically substituted ureas,

1993-07-06

1996-01-02

Raymond, Richard L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

564 47, 564 48, 564 53, 564 62, 544176, 546245, 548571, C07C27318

Patent

active

054810353

ABSTRACT:
Process for the preparation of asymmetrically substituted ureas, carbamates, thiocarbamates or substituted isocyanates by reaction of an adduct of isocyanic acid and a tertiary amine with a primary and secondary amine, an alcohol, a thiol or a compound having one or two non-cumulated olefinic double bonds, and a process for the preparation of N-mono- or N,N-disubstituted ureas by reaction of ammonium isocyanates with a primary or secondary amine in a diluent.

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