P(RNCH2CH2)3N-Catalyzed Synthesis of β-Hydroxy Nitriles
摘要:
We herein report the successful synthesis of beta-hydroxy nitriles in very good to excellent yields from aldehydes and ketones in a simple reaction that is promoted by strong nonionic bases of the. title type. The reaction occurs in the presence of magnesium salts which activate the carbonyl group and stabilizes the enolate thus produced.
[EN] ALIPHATIC NITRILE WITH ROSY ODOR<br/>[FR] NITRILE ALIPHATIQUE PRÉSENTANT UNE ODEUR DE ROSE
申请人:FIRMENICH & CIE
公开号:WO2016091699A1
公开(公告)日:2016-06-16
The present invention concerns compound of formula (I) in the form of any one of its stereoisomers or a mixture thereof, and wherein R1 and R1', independently from each other, represent a hydrogen atom or a methyl group provided that one of said groups represent a hydrogen atom and the other a methyl group; R2 and R3, independently from each other, represent substituents of the saturated ring and are a hydrogen atom or a C1-3 alkyl group; and n is an integer varying between 1 and 4; and their use in perfumery to impart odor notes of the floral, rosy type.
We herein report the successful synthesis of beta-hydroxy nitriles in very good to excellent yields from aldehydes and ketones in a simple reaction that is promoted by strong nonionic bases of the. title type. The reaction occurs in the presence of magnesium salts which activate the carbonyl group and stabilizes the enolate thus produced.
Reduction of .alpha.,.beta.-unsaturated nitriles with a copper hydride complex
作者:Morey E. Osborn、James F. Pegues、Leo A. Paquette