Process for the preparation of substituted...

Details Process for the preparation of substituted... Process for the preparation of substituted...

C - Chemistry, Metallurgy

07

D

C07D 209/82 (2006.01) C07D 209/88 (2006.01)

Patent

CA 2170828

Substituted 1,2,3,4-tetrahydrocarbazoles of the formula Image (I) having the meaning for R1 to R8 indicated in the description, can be prepared bycatalytically hydrogenating a substituted phenol of the formula Image (II) reacting the hydrogenation solution with a phenylhydrazine of the formula Image (III) to give the hydrazone and cyclizing the hydrazone under acidic conditions.

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