Carbazole derivatives

Details Carbazole derivatives Carbazole derivatives

C - Chemistry, Metallurgy

07

D

260/318, 260/298

C07D 209/88 (2006.01) C07D 209/86 (2006.01) C07D 491/056 (2006.01)

Patent

CA 1125765

ABSTRACT The invention relates to a process for the prepara- tion or known carbazole of formula Image wherein R2 is hydrogen, halogen, trifluoromethyl, hydroxy, lower alkyl, hydroxy-lower alkyl, lower alkylthio, amino, mono-lower alkylamino or di-lower alkylamino; and R3 19 halogen, trifluoromethyl, lower alkyl, hydroxy-lower alkyl, lower alkoxy, lower alkylthio, hydroxy, amino, mono-lower alkyl- amino or di-lower alkylamino, or R2, taken together with an adjacent R3, 13 lower alkylenedioxy, starting from an a-methyl-3-oxocyclohexane malonic acid di-lower alkyl ester and a substituted phenyl- hydrazine, as well as to novel carbazole derivatives utilized in this process.

331393

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