Trichloroacetyl isocyanate → HCID 57545307, compound

Participants

Reaction Steps

A modification of the general method described in Part C of Example 3 was used to treat 7-benzyloxy-2-butyl-5-oxido-1-(2-phenoxyethyl)-1H-imidazo[4,5-c]quinoline (1.0 g, 2.1 mmol). An analysis by TLC indicated that the reaction with trichloroacetyl isocyanate (1.35 mL, 11.3 mmol) was incomplete after two hours, and additional trichloroacetyl isocyanate (1 mL) was added and stirred for one hour. Following the reaction with sodium methoxide, a tan precipitate formed, and the mixture was stirred over two days. The precipitate was isolated by filtration, recrystallized from ethanol, isolated by filtration, washed with hexanes, and dried overnight in a vacuum oven to provide 0.63 g of 7-benzyloxy-2-butyl-1-(2-phenoxyethyl)-1H-imidazo[4,5-c]quinolin-4-amine as a white, crystalline solid, mp 188.0-189.0° C.

Provenance & Evidence