Methyl 2,2,2-trichloroacetimidate → 4-[2-(tert-Butyl-dimethyl-silanyloxy)-ethoxy]-2-trichloromethyl-1H-benzoimidazole

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Reaction Steps

4-[2-(tert-Butyl-dimethyl-silanyloxy)-ethoxy]-2-trichloromethyl-1H-benzoimidazole was prepared by a procedure according to example 108 (iii) starting from 503 mg (1.78 mmol) 3-[2-(tert-Butyl-dimethyl-silanyloxy)-ethoxy]-benzene-1,2-diamine and 0.31 mL (2.49 mmol) 2,2,2-trichloro-acetimidic acid methyl ester. Yield: 680 mg MS (ES+): m/e=409, chloro pattern.

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