BIS(2,2,2-TRICHLORO-1,1-DIMETHYLETHYL) PHOSPHOROCHLORIDATE is used as a phosphorylating reagent.
Bis(2,2,2-trichloro-1,1-dimethylethyl) Phosphorochloridate is conveniently prepared by the reaction of 2-trichloromethyl-2-propanol with PCl3 in pyridine solvent to afford bis(2,2,2-trichloro-1,1-dimethylethyl) chlorophosphite (71%). The chlorophosphite is oxidized with (Diacetoxyiodo)benzene to give 65% of the desired phosphorochloridate (eq 1). This overall procedure represents an improved synthesis of the phosphorochloridate when compared to the different methods reported in the literature, which give mixtures of bis(2,2,2-trichloro-1,1-dimethylethyl) chlorophosphite and 2,2,2-trichloro-1,1-dimethylethyl dichlorophosphite.
[1][2]
[1](a) Gerrard, W. JCS 1944, 85. (b) Gerrard, W.; Wyvill, P. L. Research (London) 1949, 2, 536. (c) Gerrard, W.; Isaacs, M. J. D.; Machell, G.; Smith, K. B.; Wyvill, P. L. JCS 1953, 1920. (d) Gerrard, W.; Green, W. J.; Phillips, R. J. JCS 1954, 1148.
[2] (a) Abramov, V. S.; Khairullin, V. K. JGU 1957, 27, 501. (b) Sasse, K. MOC 1964, XII/2, 45.
