Process for the preparation of new cis-bi-...

Details Process for the preparation of new cis-bi-... Process for the preparation of new cis-bi-...

C - Chemistry, Metallurgy

07

C

260/235.01

C07C 49/743 (2006.01) C07C 45/59 (2006.01) C07C 405/00 (2006.01) C07D 317/72 (2006.01) C07F 7/18 (2006.01) C07F 9/40 (2006.01)

Patent

CA 1202968

Abstract The invention relates to a process for the preparation of new cis-bicyclo[3.3.0]octane derivatives of the for- mula Image (I) wherein R1 is hydrogen, a lower alkyl group or a cation and wherein R2 represents a cyclohexyl or an adamantyl group. In these compounds the phenyl radical may be arranged with respect to the double bond in the EZ- or in the E-configuration and at the carbon atom bearing the group R2 (and others) may exist RS- or-S-configuration. The process of the invention comprises reacting a com- pound of the formula Image (II) wherein R6 is hydrogen or a protecting group with a com- pound of the formula Image (III) and splitting off the group R6, if different from hydrogen.

411873

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