Potassium Iodide → 8-chloro-1-[[(cyclopropylmethyl)methylamino]methyl]-6-phenyl-4H-s-triazolo[4,3-a][1,4]benzodiazepine

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A stirred mixture of 8-chloro-1-(chloromethyl)-6-phenyl-4H-s-triazolo[4,3-a][1,4]benzodiazepine (1.37 g., 0.004 mole), potassium iodide (0.67 g., 0.004 mole), methyl(cyclopropylmethyl)amine (1.02 g., 0.012 mole) and tetrahydrofuran (100 ml.) is kept at ambient temperature (25° C.) for 18 hours and concentrated in vacuo. The extract is washed with brine, dried over anhydrous sodium sulfate and concentrated. The residue is crystallized from ethyl acetate and methylene chlorideethyl acetate to give 8-chloro-1-[[(cyclopropylmethyl)methylamino]methyl]-6-phenyl-4H-s-triazolo[4,3-a][1,4]benzodiazepine. Preparation 30 8 -Chloro-1-[[(cyclopropylmethyl)-methylamino]methyl]-6-(o-chlorophenyl)-4H-s-triazolo[4,3-a][1,4]benzodiazepine

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