Reaction #1552044

Reaction equation

chloroformic acid vinyl ester

triethyl phosphite

→

title compound

vinyloxycarbonyl phosphonic acid diethyl ester

Conditions

Workup

1. 1
   workup.ADDITIONAfter completion of the addition
2. 2
   workup.STIRRINGthe reaction mixture was stirred for further 2 hours at room temperature
3. 3
   OtherFor complete removal of the ethyl chloride
4. 4
   Otherformed during the reaction
5. 5
   Temperaturethe solution was heated to 40° C. for 30 minutes
6. 6
   OtherPurification by vacuum destillation

Procedure

2.0 g (19 mmol) of chloroformic acid vinyl ester were precharged into a 50 ml two-necked flask, and, while stirring at 0° C., 3.13 g (19 mmol) of triethyl phosphite were slowly added dropwise. After completion of the addition, the reaction mixture was stirred for further 2 hours at room temperature. For complete removal of the ethyl chloride formed during the reaction, the solution was heated to 40° C. for 30 minutes. Purification by vacuum destillation yielded 2.5 g (64% of th.) of the title compound as a colorless liquid.

Source