tert-Butyl methyl ether → Didodecyl 2-(t-butylthio)-1-hydroxy-1-methylethanephosphonate

Participants

Reaction Conditions

Reaction Steps

23.0 g (55 mmol) of didodecyl phosphite are initially introduced into a mixture of 20 ml of tert-butyl methyl ether and 5 ml of dimethyl sulfoxide. 1.0 g of 1,8-diazabicyclo[5.4.0]undec-5-ene (DBU) are added, and 8.04 g (55 mmol) of (t-butylthio)acetone are then added dropwise at 30° C. The reaction mixture is heated for 5 hours at 60° C., cooled, diluted with 150 ml of toluene and washed with 100 ml of water. The organic phase is dried over sodium sulfate, and the solvent and remainders of the educts are distilled off in vacuo (finally at 0.5 mbar and 55° C. bath temperature).

Provenance & Evidence