Novel terpene derivatives and process for preparing the same

Details Novel terpene derivatives and process for preparing the same Novel terpene derivatives and process for preparing the same

C - Chemistry, Metallurgy

07

C

C07C 251/12 (2006.01) C07D 213/74 (2006.01)

Patent

CA 2062871

ABSTRACT OF THE DISCLOSURE Novel terpenes are disclosed which are useful for the preparation of drugs, foods, perfumes and so on. A process for the preparation thereof comprises reacting a compound represented by the general formula: Image (II) wherein n is 0 or 1 or 2, with a compound represented by the general formula: Image (III) wherein R1 represents a lower alkyl group; and R2 represents an alkyl group, a cycloalkyl group, a cycloalkylalkyl group, an aryl group, an arylalkyl group or a heteroaryl group, to form a novel terpene derivative represented by the general formula: Image (I) wherein R1, R2 and n are as defined and the symbol Image represents a single or double bond with the proviso that the two such linkages are not simultaneously both single bonds or double bonds. The reaction is conducted in an organic solvent in the presence of a transition metal compound and an organic amine.

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