Process for the preparation of acylated cyclic...

Details Process for the preparation of acylated cyclic... Process for the preparation of acylated cyclic...

C - Chemistry, Metallurgy

07

D

C07D 249/08 (2006.01) C07C 45/54 (2006.01) C07C 315/04 (2006.01) C07C 317/24 (2006.01)

Patent

CA 2295892

A process for preparing a compound of Formula (I); where Q completes an optionally substituted 5- or 6-member saturated carbocyclic ring and R is optionally substituted phenyl or optionally substituted C3-C6 cycloalkyl which process comprises the rearrangement of a compound of Formula (II); where Q and R are as defined in relation to Formula (I) in a polar aprotic, dipolar aprotic or aromatic hydrocarbon solvent in the presence of a moderate base and an azole.

L'invention concerne un procédé permettant de préparer un composé représenté par la formule (I): dans laquelle Q représente un noyau carbocyclique saturé à 5 ou 6 éléments éventuellement substitué, et R représente un phényle éventuellement substitué ou un C3-C6cycloylkyle éventuellement substitué. Ledit procédé consiste à transposer un composé représenté par la formule (II): dans laquelle Q et R sont tels que définis dans la formule (I), dans un solvant hydrocarboné aprotique polaire, aprotique dipolaire ou aromatique.

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