Process for the manufacture of cyanohydrin acylates of aldehydes

Details Process for the manufacture of cyanohydrin acylates of aldehydes Process for the manufacture of cyanohydrin acylates of aldehydes

1980-05-15

1982-06-22

Brust, Joseph Paul

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260464, 260465D, C07C12000, C07C12138, C07C12146, C07C12166

Patent

active

043362060

ABSTRACT:
Cyanohydrin acylates of aldehydes are manufactured by reacting aldehydes with aqueous solutions of cyanides and organic acid chlorides or anhydrides in the molar ratio of aldehyde:cyanide:acid chloride or anhydride of 1:1:1 with deviations of at most only about 10%, optionally in the presence of an inert organic solvent immiscible with water in a one-stage process. The process products are intermediates mainly in the fields of pharmaceuticals and plant protection.

REFERENCES:
Rambaud, Bull. Soc. Chem., 1, pp. 1326-1327 (1934).
Palm, et al., Angew. Chem., 78, p. 1096 (1966).
Nowak, J. Org. Chem., 28, (1963), pp. 1182-1187.
McIntosh, Can. J. Chem., 55, (1977), pp. 4200-4205.

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