Preparation of acetals of malonaldehyde

Details Preparation of acetals of malonaldehyde Preparation of acetals of malonaldehyde

1982-01-06

1983-10-18

Helfin, Bernard

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

Organic compounds

Oxygen containing

568591, 568592, C07C 4154

Patent

active

044107331

ABSTRACT:
Acetals of malonaldehyde are prepared by reacting an orthoester with a vinyl ether in the presence of a catalytic amount of FeCl.sub.3. The malonaldehyde acetals obtainable by the process according to the invention are valuable intermediates in the preparation of dyes, crop protection agents and drugs.

REFERENCES:
Beilstein I, IV, p. 3635.
Van Alphen, "Ether and Ester", Rec. 49, pp. 492-500, esp. p. 499 (1930).
Houben-Weyl, vol. XIV/1, pp. 930-932.

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