Chemistry of Heterocyclic Compounds p. 830 - 832 (1982)
Update date:2022-08-05
Topics:
Medvedeva, M. M.
Pozharskii, A. F.
A new method for the synthesis of 1-substituted 2-aminobenzimidazoles, which are difficult or imposible to obtain by direct amination with sodium amide, is proposed.The method consists in the action of liquid ammonia on 1-R-3-methoxybenzimidazolium salts.The reaction is accompanied by the addition of the amide ion in the 2-position and elimination of a methoxy group.
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