To a mixture of 4-(6-acetyl-3-oxo-2H-benzo[b][1,4]oxazin-4(3H)-yl)butanoate (1.3 g, 0.003 mol), urea hydrogen peroxide (0.85 g, 0.009 mol) and sodium bicarbonate (0.76 g, 0.009 mol) in anhydrous dichl… more →
PMGBpmgb wrote 1 year ago: To a mixture of 4-(6-acetyl-3-oxo-2H-benzo[b][1,4]oxazin-4(3H)-yl)butanoate (1.3 g, 0.003 mol), urea … more →