Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing
Patent
1984-01-12
1990-05-01
Elmore, Carolyn S.
Organic compounds -- part of the class 532-570 series
Organic compounds
Amino nitrogen containing
564 16, 423 9, 423 10, C07F 928, C07F 902
Patent
active
049220128
ABSTRACT:
Novel organic tertiary phosphine oxides for example, bidentate organophosphorus actinide extractants, such as the carbamoylmethylphosphine oxides (CMPO's) are disclosed, such compounds can be prepared (e.g., in 85% or better yield and purity) by a process involving phase transfer catalysis, under conditions where degradive hydrolysis of the products or reactants is substantially avoided. For example, tertiary carbamoylmethylphosphine oxides which are useful as extractants for transplutonium elements are disclosed and can be prepared by reaction of the corresponding secondary phosphine oxides with 2-substituted acetamides (wherever the substituent is a good leaving group, e.g., chlorine) in a two-phase system containing a high concentration of an aqueous base (preferably sodium hydroxide) and a suitable phase transfer catalyst, e.g., tetralkylammonium chlorides.
REFERENCES:
patent: 3816068 (1974-06-01), Rivlin
patent: 3972928 (1976-08-01), Newallis et al.
Zabrusova et al., CA 66:10998h (1967).
Horwitz et al., Chem. Eng. News, p. 51 (7/13/81).
Elmore Carolyn S.
Fuerle Richard D.
Occidental Chemical Corporation
Tao James F.
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