Process for the preparation of 1,3-substituted indenes and...

Details Process for the preparation of 1,3-substituted indenes and... Process for the preparation of 1,3-substituted indenes and...

C - Chemistry, Metallurgy

07

C

C07C 255/47 (2006.01) C07C 253/30 (2006.01) C07C 315/00 (2006.01) C07C 317/44 (2006.01) C07D 221/22 (2006.01) C07D 317/30 (2006.01)

Patent

CA 2443946

The present invention relates to processes for the preparation of any of the intermediate 1,3-substituted indenes of formulae (Ia, Ib and Ic) or a mixture thereof, wherein R1, R2, R3, R4, and R5 are defined herein. Compounds of formulae (Ia, Ib and Ic) or mixtures thereof are useful in the preparation of compounds of formula (II), wherein R2, R3 and R6 are also defined herein.

La présente invention concerne des procédés de préparation de n'importe lequel des indènes intermédiaires 1,3-substitués représentés par les formules (Ia), (Ib) et (Ic) ou un mélange de ceux-ci, formules dans lesquelles R?1¿, R?2¿, R?3¿, R?4¿ et R?5¿ sont définis. Les composés des formules (Ia), (Ib) et (Ic) ou des mélanges de ceux-ci sont utilisés dans la préparation de la formule (II), dans laquelle R?2¿, R?3¿ et R?6¿ sont également définis.

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