Dimethylformamide → HCID 69924352, compound

Participants

Reaction Steps

To a solution of 1.60 g (4.61 mmol) (2-methylsulfanyl-4-o-tolyloxy-pyrimidin-5-yl)-carbamic acid tert.-butyl ester in 20 ml N,N-dimethylformamide 0.25 g (6.4 mmol) sodiumhydride (60% dispersion in mineraloil) was added and the reaction mixture stirred for 1 h. After the addition of 0.48 ml (7.83 mmol) methyl iodide at 0°, the reaction mixture was stirred for 3 hrs. The reaction mixture was poured into 100 ml ice-water and three times extracted with 80 ml CH2Cl2. The combined organic layers were dried (Na2SO4), filtered and evaporated. The residue was purified by chromatography (SiO2, CH2Cl2/ethyl acetate 19:1) to give 1.60 g (98%) methyl-(2-methylsulfanyl-4-o-tolyloxy-pyrimidin-5-yl)-carbamic acid tert-butyl ester as a colorless oil, MS (EI): 361 (M+)

Provenance & Evidence