4-hydroxyacetoacetic acid alkyl ester

Details 4-hydroxyacetoacetic acid alkyl ester 4-hydroxyacetoacetic acid alkyl ester

C - Chemistry, Metallurgy

07

C

260/488.1

C07C 69/716 (2006.01) C07C 69/72 (2006.01)

Patent

CA 1175057

4-HYDROXYACETOACETIC ACID ALKYL ESTER ABSTRACT OF THE DISCLOSURE Process for the preparation of 4-hydroxyacetoacetic acid alkyl ester. 4-halogen acetoacetic acid alkyl ester is converted into the 4-benzyloxyacetoacetic acid alkyl ester and the latter is hydrogenolyzed. The hydrogenolysis is preferably carried out under pressure and in the presence of a hydrogenation catalyst. The 4-hydroxyacetoacetic acid alkyl esters include 4-hydroxyacetoacetic acid methyl ester and 4-hydroxyacetoacetic acid ethyl ester.

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