Continuous process for the alkylation of CH-acid compounds with

Details Continuous process for the alkylation of CH-acid compounds with Continuous process for the alkylation of CH-acid compounds with

1987-03-30

1990-01-16

Brust, Joseph Paul

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

Organic compounds

Nitriles

560190, 560203, 562490, 562492, C07C12166, C07C12168

Patent

active

048944718

ABSTRACT:
A continuous process for the alkylation of CH-acid compounds with dialkyl carbonates in gas-liquid phase transfer catalysis conditions is described, consisting of contacting a mixture of a CH-acid compound (arylacetonitrile or malonic diester) and of a dialkylcarbonate, optionally added with an inert carrier (constituted by a polar or aprotic polar liquid or by a gas), with a catalytic bed comprising alumina spheres carrying a base and a phase transfer catalyst.

REFERENCES:
patent: 4012428 (1977-03-01), Ohno et al.

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