Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1984-02-23
1985-07-23
Raymond, Richard L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C07F 963
Patent
active
045310050
ABSTRACT:
A 4-pyrazolyl phosphorous acid ester of the following formula, ##STR1## (R is a lower alkyl group; Y is a phenyl group which may optionally be substituted by a halogen, halogens, a lower alkyl group or a halogen and a lower alkyl group.) which is produced by reacting corresponding 4-hydroxylpyrazole compound with a trialkyl phosphite. The ester gives 4-pyrazolyl phosphorothioate by the reaction with an alkylsulfenyl halide.
REFERENCES:
patent: 4315008 (1982-02-01), Maurer et al.
patent: 4474775 (1984-10-01), Okada et al.
Houben-Weyl, Methoden Der Organischen Chemie, vol. XII/2, (1965), Georg Thieme Verlag, Stuttgart, pp. 73-78.
Kosolapoff et al., Organic Phosphorus Compounds, vol. 7, John Wiley & Sons, New York, (1978), pp. 537-539.
Inoue Yoshihiro
Iwanaga Koichi
Okada Yoshiyuki
Raymond Richard L.
Takeda Chemical Industries Ltd.
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