Methyl iodide → 5-Methyl-5H-6-thia-4,5-diaza-chrysene 6,6-dioxide

Participants

Reaction Steps

5H-6-Thia-4,5-diaza-chrysene 6,6-dioxide (Example Compound 2) (50 mg, 0.18 mmol) was added to solution of NaH (60% dispersion in mineral oil; 11 mg, 0.27 mmol) dissolved in dry THF (3 ml), under argon, at 0° C., and the mixture was stirred for 15 min. Methyliodide (29 mg, 0.22 mmol) was added and the reaction was allowed to warm to room temperature and stirring continued for 12 h. After completion of the reaction (monitored by TLC), the solvent was removed in vacuo. The residue was dissolved in EtOAc, washed with water and brine. The organic phase was dried (Na2SO4) and concentrated in vacuo. The crude residue was purified by column chromatography with n-hexane/EtOAc (3:1) as the eluent to give the title compound (27 mg, 52%).

Provenance & Evidence