Facile synthesis of 2-substituted indoles and indolo[3,2-b]carbazoles from 2-(benzotriazol-1-ylmethyl)indole

Article abstract of DOI:10.1021/jo00116a026

Replacement of the benzotriazole moiety of N-alkyl-2-(1-benzotriazol-1-ylalkyl)indoles 6 and 9, prepared from 1-propargylbenzotriazole and o-iodoaniline followed by alkylation, with Grignard reagents gave the corresponding 2-substituted indoles 10 in good