Hydrochloric Acid → HCID 15315828, compound

Participants

Reaction Steps

0.52 mmol trimethylsilyltriflate is added dropwise to 11.4 mmol diethylphosphite and 12.4 mmol N,O-bis-(trimethylsilyl)acetamide in 5 ml dichlormethane at 0° C. After 30 minutes of stirring at the same temperature 0.52 mmol 2-cyclohexen-1-one are added dropwise thereto and is stirred for 1 h. The enolsilane intermediate product is hydrolized by 3 ml 1 n HCl during 3 hours of stirring. The organic phase is separated, dried over magnesiumsulfate and concentrated. The raw product can be chromatographed on SiO2 and after concentration of the desired fractions results in 3-oxo-cyclohexylphosphonic acid diethylester 2(a) in a 95% yield.

Provenance & Evidence