Chemistry of Heterocyclic Compounds p. 158 - 160 (1990)
Update date:2022-08-30
Topics:
Moskalev, N. V.
It has been shown that carbazole and its N-alkyl substituted derivatives are readily alkylated by a mixture of t-BuOH-CF3COOH to form 1,3,6,8-tetra- and 3,6-di(tert-butyl)-substituted carbazoles, respectively.Trifluoroacetylation of these compounds leads to 1-trifluoroacetylated compounds but 1,3,6,8-tetra(tert-butyl)carbazole undergoes ipso-substitution to form the 3-trifluoroacetyl derivative.
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