Process for the manufacture of chloroacetaldehyde dialkyl acetal

Details Process for the manufacture of chloroacetaldehyde dialkyl acetal Process for the manufacture of chloroacetaldehyde dialkyl acetal

1986-05-30

1987-02-10

Mars, Howard T.

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

Organic compounds

Oxygen containing

C07C 4148, C07C 4158, C07C 4150

Patent

active

046423893

ABSTRACT:
A semi-continuous process for the manufacture of acetals of alpha-halogenated aldehydes is described. In a preferred embodiment of the invention, chloroacetaldehyde dimethyl acetal is prepared by introducing chlorine and a mixture of vinyl acetate and an excess of methanol through separate inlets into a reaction site of a vertical packed column and collecting a low boiling distillate formed from by-product vapors and separately collecting the crude acetal product flowing downward from the reaction site.

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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