Phenyl chloroformate → Carbamic acid, N-(4,6-dimethoxy-2-pyrimidinyl)-, phenyl ester

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Reaction Steps

To a solution of 8.0 g of 2-amino-4,6-dimethoxypyrimidine in 50 ml of tetrahydrofuran are added 4.0 g of phenyl chlorocarbonate and 0.1 g of 4-dimethylaminopyridine, followed by stirring for 17 hours at room temperature. The mixture is allowed to stand overnight and filtered to remove insoluble product and the filtrate is purified by silica gel chromatography (eluent: dichloromethane) to give 4.4 g of the title compound. mp. 118°-119° C.

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