C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 45/74 (2006.01) C07C 49/235 (2006.01)
Patent
CA 2527171
The present invention relates to a method for the preparation of as 1-(4-Chlorophenyl)-4,4-dimethylpent-1-ene-3-one, also known as Phenyl aldol. The process of the present invention utilizes catalysts. The process enables the manufacture of the Phenyl aldol in the absence of a solvent and without crystalization or filtration steps. Yields in the range of about greater than 95% with purities in the range of about greater than 95% have been obtained with the present invention.
La présente invention concerne une méthode pour la préparation de 1-(4-chlorophényl)-4,4-diméthylpent-1-ène-3-one, aussi connue sous le nom de phénylaldol. Le procédé prévu par la présente invention fait appel à des catalyseurs. Le procédé permet au fabricant de produire du phénylaldol en l'absence de solvant et sans étape de cristallisation ou de filtration. On a obtenu des rendements supérieurs à 95 %, avec un degré de pureté supérieur à 95 % grâce à la présente invention.
Hanson Joe J.
Kulkarni Shekhar V.
Bayer Cropscience Lp
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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