Process for the manufacture of acetals of chloroacetaldehyde

Details Process for the manufacture of acetals of chloroacetaldehyde Process for the manufacture of acetals of chloroacetaldehyde

1986-05-30

1987-02-10

Mars, Howard T.

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

Organic compounds

Oxygen containing

568596, 568591, 549455, 560266, C07C 4148, C07C 4150, C07C 4158

Patent

active

046423907

ABSTRACT:
A semi-continuous process for the manufacture of acetals of chloroacetaldehyde is described. In a preferred embodiment of the invention, chloroacetaldehyde dimethyl acetal is prepared by introducing chlorine and vinyl acetate through separate inlets into the upper opening of a cooled vertical packed column to form an intermediate product. The intermediate flows through the column, and optionally a static mixer, into a cooled batch reactor precharged with an excess of methanol to form the crude acetal product. Isolation and purification of the product is accomplished by known batch-type procedures.

REFERENCES:
patent: 2330570 (1943-09-01), Filachione
patent: 2411826 (1946-11-01), Filachione
patent: 2803668 (1957-08-01), Morris et al.
patent: 4130592 (1978-12-01), Vogt et al.
patent: 4440959 (1984-04-01), Deinhammer
Filachione, E. M., Am. Chem. Soc., vol. 61, 1939, pp. 1705-1706.

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