Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing
Patent
1978-07-13
1982-12-21
Demers, Arthur P.
Organic compounds -- part of the class 532-570 series
Organic compounds
Amino nitrogen containing
C07C10206
Patent
active
043650929
ABSTRACT:
This invention relates to an improved process for the preparation of methacrylamide by the reaction of methylmethacrylate with a molar excess of aqueous ammonium hydroxide at or near ambient temperatures to provide a high purity and yield of methacrylamide reaction product that is compatible in the preparation of isocyanate resins. Optional surfactants and alkoxide catalysts may be utilized to increase the rate of the reaction of methylmethacrylate with ammonia which may be further fostered by the addition of gaseous ammonia to the aqueous ammonium hydroxidemethylmethacrylate reaction mixture to yield methacrylamide according to the general equation: ##STR1##
REFERENCES:
patent: 2120933 (1938-06-01), Dittmar
patent: 3397232 (1968-08-01), Takagi et al.
patent: 3666809 (1972-05-01), Okeino et al.
patent: 3887425 (1975-06-01), Munch
patent: 3902855 (1975-09-01), Lynch
patent: 3917693 (1975-11-01), Asano et al.
patent: 3929421 (1975-12-01), Werges
Arcus, J. Chem. Soc. 1949, pp. 2732-2736.
Organic Synthesis (vol. 4) John Wiley & Sons, N.Y.; N.Y. 1963, pp. 486-488.
Handbook of Chemistry & Physics, 49th Ed. 1968, The Chemical Rubber Co., pp. C-510 and F-85.
Cook Paint and Varnish Company
Demers Arthur P.
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