Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1981-03-04
1983-05-10
Jiles, Henry R.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C07D23120
Patent
active
043831168
ABSTRACT:
4-Benzoyl-5-hydroxypyrazoles useful as herbicidal active ingredients or their intermediate are produced by a condensation of a pyrazolone and a benzotrichloride followed by a hydrolysis reaction with industrial advantages.
REFERENCES:
patent: 3939203 (1976-02-01), Mattison et al.
patent: 4070536 (1978-01-01), Konotsune et al.
patent: 4146726 (1979-03-01), Konotsune et al.
Newman et al., J. Org. Chem., 1954, vol. 19, pp. 985-1002.
Wiley et al., Pyrazolones, Pyrazolidones and Derivatives, Interscience, NY, 1964, p. 22.
Haga Takahiro
Maeda Masaru
Minamida Kohji
Nakajima Toshio
Nishikawa Tetsuji
Harkaway Natalia
Ishihara Sangyo Kaisha Ltd.
Jiles Henry R.
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