Production of halogen-containing tertiary phosphine oxides

Details Production of halogen-containing tertiary phosphine oxides Production of halogen-containing tertiary phosphine oxides

1974-06-21

1976-01-06

Sneed, Helen M. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07F 902

Patent

active

039313336

ABSTRACT:
Production of halogen-containing tertiary phosphine oxides of the general formula I ##EQU1## in which the substituents R.sub.1, R.sub.2 and R.sub.3, being identical or different, stand for an alkyl, alkenyl, aryl or aralkyl radical, at least one of those radicals containing at least one aliphatically combined halogen atom. The compounds are made by reacting one or more compounds of the general formula II ##EQU2## in which R.sub.4, R.sub.5 and R.sub.6, being identical or different, stand for an alkyl, alkenyl, aryl or aralkyl radical, at least one of those R.sub.4, R.sub.5 and R.sub.6 radicals containing an aliphatically combined hydroxyl group, with at least equivalent proportions, based on the number of hydroxyl groups, of gaseous hydrogen halide with agitation, if desired, at temperatures within the range about 100.degree. and 300.degree.C; freeing the reaction mixture, during the reaction or after termination thereof, from water originating from the reaction; and separating from the resulting reaction mixture the halogen-containing tertiary phosphine oxide by distillation or crystallization.

REFERENCES:
patent: 3306937 (1967-02-01), Clampitt et al.
patent: 3716580 (1973-02-01), Maier
Petrov et al., Russian Chemical Reviews, Vol. 37, No. 7, pp. 537 to 539 (1968).
Noller, Chemistry of Organic Compounds, W. B. Saunders Co., Phila., pp. 147 and 148 (1966).

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