Method for preparing cyanacetaldehyde acetals

Details Method for preparing cyanacetaldehyde acetals Method for preparing cyanacetaldehyde acetals

1983-06-02

1985-09-17

Brust, Joseph Paul

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260465F, 2604656, C07C12000, C07C12116, C07C12146, C07C12175

Patent

active

045419604

ABSTRACT:
Cyanacetaldehyde acetals, which can be substituted at the alpha carbon atom, form in a high yield and purity by the transposition of the appropriately substituted 3-alkoxy-nitriles with alcohols in the presence of basic catalysts from the group of the alcoholates of the alkali or alkaline earth metals, followed by deactivation of the catalyst. Short reaction times and high yields combined with a minimum production of byproducts are achieved by the continuous performance of the transposition in the continuous-flow reactor.

REFERENCES:
patent: 3466317 (1969-09-01), Kuper
patent: 4299777 (1981-11-01), Garrou et al.
McElvain et al., J.A.C.S., 69 (1947), pp. 2657-2660.
Patai (Editor), "The Chemistry of the Ether Linkage", (1967), pp. 322-323, Interscience Pub., N.Y.

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