Ammonia → 1-Trimethylsilyl-5-trimethylsilylthio-1,2,3-triazole

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Reaction Steps

1.52 ml of hexamethyldisilazane (7.3 mmoles) were added to a refluxing mixture of 0.49 (4.86 mmoles) of 5-mercapto-1,2,3-(1H)-triazole, 5 mg (0.207 mmole) of saccharin, 10 ml of ethyl acetate and 15 ml of dichloromethane and the ammonia evolved was titrated with 1 N H2SO4 by the method described in Example 1A. It was found that 2 equivalents (4.9 mmoles) were evolved after refluxing for 30 minutes. Volatile materials were evaporated in vacuo to obtain 1.19 g (96%) of 1-trimethylsilyl-5-trimethylsilylthio-1,2,3-triazole NMR Spectrum was taken in carbon tetrachloride solution: Δ0.31 (9H); 0.48 (9H); 7.46 (1H).

Provenance & Evidence