Preparation method for .alpha.,.beta.-unsaturated ketones

Details Preparation method for .alpha.,.beta.-unsaturated ketones Preparation method for .alpha.,.beta.-unsaturated ketones

C - Chemistry, Metallurgy

07

C

C07C 45/72 (2006.01) A61K 31/135 (2006.01) A61K 31/275 (2006.01) A61K 31/33 (2006.01) C07C 45/66 (2006.01) C07C 45/74 (2006.01) C07C 49/00 (2006.01) C07C 205/45 (2006.01) C07C 319/20 (2006.01) C07C 323/22 (2006.01) C07D 307/12 (2006.01) C07D 309/06 (2006.01) C07D 335/02 (2006.01)

Patent

CA 2044619

.beta.-hydroxyketones are prepared by reacting an aldehyde with acetone in the presence of perhydroisoindole or pyrrolidine and water. The resulting .beta.-hydroxyketone is further reacted in the presence of a solvent mixture to produce .alpha.,.beta.-unsaturated ketones.

Bêta-hydroxycétones, préparées par réaction d'un aldéhyde avec une cétone, en présence de perhydro-iso-indole ou de pyrrolidine, et d'eau. On fait ensuite réagir la bêta-hydroxycétone en présence d'un mélange-solvant pour l'obtention de cétones insaturées en alpha et en bêta.

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