C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 229/34 (2006.01) C07C 227/16 (2006.01) C07K 5/02 (2006.01) C07K 5/078 (2006.01) C07C 229/36 (2006.01)
Patent
CA 2254972
To produce an 1-alkoxycarbonyl-3-phenylpropyl derivative having little amount of impurities and good quality by a simple, efficient and highly productive process which comprises catalytically reducing an 1-alkoxycarbonyl-3-oxo-3-phenylpropyl derivative. 1-Alkoxycarbonyl-3-phenyl-propyl derivative is provided and obtained by catalytic redution being carried out in an alcohol or a solvent containing the alcohol in the presence of a strong acid having a concentration of 0.4 to 0.5 N, the amount of the strong acid being at least 3 equivalents based on one equivalent of the 1-alkoxycarbonyl-3-oxo-3-phenylpropyl derivative (1 mole).
Procédé simple, efficace et haut rendement destiné à la préparation de dérivés de 1-acoxycarbonyl-3-phénypropyle de qualité élevée et contenant peu d'impuretés, par réduction catalytique de dérivés de 1-alcoxycarbonyl-3-oxo-3-phénypropyle.
Manabe Hajime
Matsumoto Akira
Ueda Yasuyoshi
Kaneka Corporation
Osler Hoskin & Harcourt Llp
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