Process for the production of 3-oxocarboxylic acid esters

Details Process for the production of 3-oxocarboxylic acid esters Process for the production of 3-oxocarboxylic acid esters

C - Chemistry, Metallurgy

07

C

C07C 67/343 (2006.01) C07C 69/716 (2006.01) C07C 69/738 (2006.01) C07C 323/50 (2006.01) C07D 207/08 (2006.01) C07D 209/18 (2006.01) C07D 211/34 (2006.01) C07D 213/55 (2006.01) C07D 307/16 (2006.01) C07D 333/24 (2006.01)

Patent

CA 2053487

ABSTRACT OF THE DISCLOSURE 3-Oxocarboxylic acid esters are produced by acylation of the magnesium enolates of acetoacetic acid esters with carboxylic acid chlorides and cleavage of the acetyl group from the acylacetoacetic acid esters formed as the intermediate product. The yields and purity of the products are considerably improved by adding a tertiary amine during the acylation. LP 1490 25

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