Indole related compounds. Reaction of 1‐protected‐indoles with pyridine substrates

Abstract

Abstract The products resulting from the reactions of 1‐benzenesulfonyl‐2‐lithioindole and 2‐lithio‐1‐methylindole with different pyridine substrates (pyridine, 1‐methoxy‐pyridinium salt and 2‐bromopyridine) have been studied. The use of lithiocyclohexylisopyropylamide as a lithiating agent of indoles has been investigated. The preparation of four of the possible benzenesulfonyl derivatives of 2‐(2′ ‐pyridyl)indole is described.