Hydrochloric Acid → 2-Methyl-5H-dibenzo[b,e][1,4]diazepin-11-ylamine hydrochloride

Participants

Reaction Steps

Combine 5-methyl-2-(2-nitro-phenylamino)-benzonitrile (4.03 g, 15.91 mmol), tin(II) chloride dihydrate (10.77 g, 47.74 mmol), 5N HCl (65 ml), and ethanol (40.0 ml). Stir the mixture at reflux for 7 hours then cool it to ambient temperature and chill it in the refrigerator overnight. Remove the resulting precipitate by vacuum filtration. Place the precipitate in ethanol (100.0 ml) and 5N HCl (20.0 ml) and heat at reflux for 19 hours. Cool the reaction mixture to ambient temperature then chill it in the refrigerator. Filter off the resulting precipitate by vacuum filtration and dry it in a vacuum oven to give 2.59 g (63%) of an orange solid: mass spectrum (ion spray): m/z=224.0 (M+1).

Provenance & Evidence