Trimethylsilyl iodide → HCID 178428623, compound

Participants

Reaction Conditions

Reaction Steps

In 6 ml of carbon tetrachloride was dissolved 0.4 g of 3,4-dihydro-4-[(2-methoxypyridin-3-yl)carbonyl]-2,2-dimethyl-6-nitro-2H-1,4-benzoxazine followed by dropwise addition of 0.26 g of trimethylsilyl iodide. The mixture was heated at 50° C. for 2 hours and, then, cooled. The reaction mixture was diluted with water and extracted with chloroform. The organic layer was dried over anhydrous magnesium sulfate and filtered, the filtrate was concentrated under reduced pressure, and methanol was added to the concentrate for crystallization., Recrystallization from ethyl acetate gave 0.31 g of 3,4-dihydro-4-[(2-hydroxypyridin-3-yl)carbonyl]-2,2-dimethyl-6-nitro-2H-1,4-benzoxazine.

Provenance & Evidence