Methanol → 5-(4-(2-(trimethoxysilyl)ethyl)benzylthio)-1H-1,2,3-triazole

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Reaction Steps

10 mmole of 5-mercapto-1H-1,2,3-triazole (sodium salt) was dissolved in 20 ml methanol and stirred for 5 minutes. 10 mmole of ((chloromethyl)phenylethyl)-trimethoxysilane was added to the solution, and stirred for 6 hours. The white precipitate was removed by filtration, the solvent in the filtrate was removed in vacuum. The filtrate was dissolved in small amount of methanol, and separated with a Si gel column (solvents: 5 ethylacetate/5 hexane in volume). 2.2 g product as liquid was obtained. Yield: 64.8%. 1H NMR (CDCl3) of Precursors 5: δ(ppm) 7.47 (1H, s), 7.12 (4H, m), 4.06 (2H, s), 3.55 (9H, s), 2.69 (2H, t, JH-H=8.50), 1.00 (2H, t, JH-H=8.50).

Provenance & Evidence