2-(Chloromethyl)-5-methyl-1,2-oxazol-3(2H)-one → HCID 20332918, compound

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Reaction Steps

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.

Provenance & Evidence