反应详情

To a solution of 1.48 g of the 2-chloromethyl-5-methyl-4-isoxazolin-3-one thus obtained in 30 ml of acetone were added 2.52 g of crystalline potassium O,O-di-n-propyl dithiophosphate, and the resulting mixture was then stirred for 1 hour at ambient temperature. The acetone was then evaporated off and the residue was purified by column chromatography through silica gel eluted with a 20:1 by volume mixture of benzene and acetone. There were obtained 2.39 g (73.5% of theory) of O,O-di-n-propyl S-(5-methyl-3-oxo-4-isoxazolin-2-ylmethyl) phosphorodithioate, in the form of a pale yellow oil, n20D =1.5314.

1. customThe acetone was then evaporated off
2. customthe residue was purified by column chromatography through silica gel
3. washeluted with a 20:1 by volume mixture of benzene and acetone