Chloroacetone → HCID 20221464, compound

Participants

Reaction Steps

A mixture of p-methoxybenzyl α-thioformamidodiethylphosphonoacetate (188 mg., 0.5 mmole), powdered potassium carbonate (1.52 mg., 1.1 mmole) and chloro-2-propanone (44μl., 0.55 mmole) in acetone (2.5 ml.) is stirred at room temperature and under a nitrogen atmosphere. After 22 hours stirring, the mixture is filtered and the salts washed with acetone. The combined filtrate and washings are evaporated in vacuo to a dark residue which is shaken with csrbon tetrachloride (3 × 2 ml.). The combined extracts are washed with water (2 × 2 ml.) and saturated brine (2 ml.), dried over magnesium sulfate and evaporated in vacuo to give p-methoxybenzyl 5-methyl-6H-1,3-thiazine-4-carboxylate (116 mg.) as an orange oil.

Provenance & Evidence