Process for production of aromatic aldoximes

Details Process for production of aromatic aldoximes Process for production of aromatic aldoximes

1988-06-20

1990-05-01

Reamer, James H.

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

Organic compounds

Amino nitrogen containing

564259, C07C13100

Patent

active

049220179

ABSTRACT:
A process for preparing an aromatic aldoxime, such as benzaldehyde oxime, by reacting the corresponding, .alpha.,.alpha.-dihalide, such as benzal chloride, with a hydroxylamine salt in the presence of an excess of an aqueous base sufficient to maintain the product oxime in solution. Organic impurities may be phase separated from the reaction mixture. Thereafter, the aqueous solution containing product oxime is neutralized to separate an oxime phase, which may be recovered by decanting or solvent extraction.

REFERENCES:
patent: 3081347 (1963-03-01), Leary
patent: 3429920 (1969-02-01), de Rooij
patent: 3624157 (1971-11-01), Ingwalson et al.
patent: 4323706 (1982-04-01), Bonfield et al.
E. Muller, Methoden der Organishchen Chemie, 85-90 (Houben-Weyl, 4th ed. 1968).

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