Process for the preparation of 3,5-dihydroxypentanoic acid...

C - Chemistry – Metallurgy – 07 – C

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C07C 69/732 (2006.01) C07C 67/31 (2006.01) C07C 69/708 (2006.01) C07C 231/12 (2006.01) C07C 235/34 (2006.01) C07C 327/22 (2006.01) C07D 215/227 (2006.01) C07D 217/24 (2006.01)

Patent

CA 2098185

2098185 9210461 PCTABS00130 Procédé de préparation de produits de formule genérale (I) par réduction stéréosélective d'une hydroxycétone de formule générale (II) au moyen de borohydrure ou de cyanoborohydrure de sodium ou de potassium associé à un dérivé du titane. Dans les formules (I) et (II), Z représente un radical alcoxy, alcoylthio, amino, alcoylamino, dialcoylamino, R représente: soit un radical R1-Y-(-Y-=-CH2CH2-, -CH=CH-,-C=C- et R1 représente un radical aliphatique, alicyclique, aromatique ou hétéroaromatique éventuellement substitué) - soit un radical (a) (R2=halogène, alcoxy, alcoylthio, arylthio, amino, alcoylamino, dialcoylamino et R3=hydrogène ou R2).

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