A number of 9-alkenylcarbazoles were obtained in good yields by elimination of alcohols from 9-(l-alkoxyalkyl)carbazoles by heat treatment and under the influence of catalysts. The method makes it possible to obtain both pure trans isomers and mixtures of cis-trans isomers of disubstituted 9-alkenylcarbazoles. The trans isomers of N-propenyl derivatives of pyrrolidone and caprolactam were similarly obtained. The fact of the catalysis of the electrophilic addition of alcohols to 9-alkenylcarbazoles by carbon tetrachloride was observed.
ASJC Scopus subject areas
- Organic Chemistry