Processes for preparing alkylene and dialkyl ketals and...

Details Processes for preparing alkylene and dialkyl ketals and... Processes for preparing alkylene and dialkyl ketals and...

C - Chemistry, Metallurgy

07

C

260/351.1, 260/5

C07C 59/64 (2006.01) C07C 69/618 (2006.01) C07C 69/734 (2006.01) C07D 317/30 (2006.01)

Patent

CA 1338626

Alkylene or dialkyl ketal of an alpha-acetyl cinnamic acid or ester thereof are obtained by reacting alpha-acetyl cinnamic acid or an ester thereof with a ketalizing agent which can be alkyl glycols, dialkyl ketals 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.

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