An unusual acid-catalyzed rearrangement of 1-arylindoles 1 to 5H-dibenz [b, f] azepines 2 has been discovered. It can be used for the preparation of 2. The influence of the nature and the position of the substituents in the initial molecule 1 on the rearrangement is discussed. A possible mechanism of the reaction is suggested. A convenient method for preparation of 1- arylindoles 1c-k by means of arylation of 1-unsubstituted indoles with aryl halides by the ...
