2,4-Dimethylphenol → Bis(2,4-dimethylphenyl) chlorothiophosphate
Reaction equation
[P:1]([Cl:5])(Cl)(Cl)=[S:2].[CH3:6][C:7]1[CH:12]=[C:11]([CH3:13])[CH:10]=[CH:9][C:8]=1[OH:14]>C(N(CC)CC)C>[P:1]([Cl:5])([O:14][C:8]1[CH:9]=[CH:10][C:11]([CH3:13])=[CH:12][C:7]=1[CH3:6])([O:14][C:8]1[CH:9]=[CH:10][C:11]([CH3:13])=[CH:12][C:7]=1[CH3:6])=[S:2]Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 20 °C
Procedure
Thiophosphoryl chloride (17.0 g) was dissolved in tuoluene (250 cm3) and triethylamine (21.5 g) was added. The solution was stirred at 20° C. and 2,4-dimethylphenol (24.4 g) was added in portions during 1 hr. The mixture was stirred for 2 hr. and then heated and stirred at 80° C. for a further 2 hr. and then cooled and filtered to remove thriethylamine hydrochloride. The toluene was distilled under reduced pressure leaving bis(2,4-dimethylphenyl) chlorothiophosphate (oil, 30.6 g. 31P NMR in CDCl3, singlet 54.57 ppm downfield of H3 PO4).