Processes for preparing aklylene and dialkyl ketals and alkyl al

Details Processes for preparing aklylene and dialkyl ketals and alkyl al Processes for preparing aklylene and dialkyl ketals and alkyl al

1987-10-13

1988-11-22

Killos, Paul J.

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

Organic compounds

Carboxylic acid esters

562470, 562426, 560 10, C07C 6976

Patent

active

047867485

ABSTRACT:
Alkylene or dialkyl ketal of an alpha-acetyl cinnamic acid or ester therof are obtained by reacting alpha-acetyl cinnamic acid or an ester thereof with a ketalizing agent selected from the group consisting of alkyl glycols, dialkyl detals and trialkyl orthoesters in the presence of the transition metal catalyst and an acid catalyst. Also, alkyl alpha-enol ethers of alpha-acetyl cinnamic acid are obtained by heating the alkylene or dialkyl ketals.

REFERENCES:
Gasparrini et al, Tetrahedron, 40:1491 (1984).
Jones, Org. Reactions, 15:204 (1967).

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