Organic compounds -- part of the class 532-570 series – Organic compounds – Esters having the thiocarboxylate group – -cx- – wherein the...
Patent
1992-10-09
1993-09-28
Raymond, Richard L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Esters having the thiocarboxylate group, -cx-, wherein the...
560 24, 564 57, 564 48, 564 61, 564 64, C07C 6736, C07C33300, C07C27300
Patent
active
052487555
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 isocyanate with a primary or secondary amine in a diluent.
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Muller Martin
Rossler Markus
Schulz Erich
Stern Gerhard
Bembenick Brian G.
Chemie Linz Gesellschaft m.b.H.
Raymond Richard L.
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