Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing
Patent
1991-11-25
1993-08-24
Raymond, Richard L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Amino nitrogen containing
C07C24916
Patent
active
052391191
ABSTRACT:
Azines are synthesized from aqueous hydrogen peroxide, ammonia and a carbonyl compound, e.g., acetone, methyl ethyl ketone or methyl isobutyl ketone, in the presence of a catalytically effective amount of immixture of an amide of a weak acid and an ammonium salt corresponding to such weak acid. A more general high output such process comprises (a) interreacting aqueous hydrogen peroxide, ammonia and a carbonyl compound in the presence of a catalytically effective amount of immixture comprising an amide of a weak acid, (b) separating the azine thus produced from the medium of reaction, (c) reconstituting the amount of the amide in the medium of reaction to the initial amount thereof present at the onset of step (a), and (d) recycling such reconstituted medium of reaction to step (a).
REFERENCES:
patent: 3869541 (1975-03-01), Weiss et al.
patent: 3943152 (1976-03-01), Tellier et al.
patent: 3972876 (1976-08-01), Schirmann et al.
patent: 3972878 (1976-08-01), Schirmann et al.
patent: 4093656 (1978-06-01), Schirmann et al.
Schirmann Jean-Pierre
Tellier Pierre
Atochem
O'Sullivan P.
Raymond Richard L.
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