Halogeno-4-methylpyrazoles

Details Halogeno-4-methylpyrazoles Halogeno-4-methylpyrazoles

1992-04-14

1993-06-15

Morris, Patricia L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

5483641, 5483731, C07D40104, C07D23116

Patent

active

052200280

ABSTRACT:
There are disclosed halogeno-4-methylpyrazoles represented by the formula (I): ##STR1## wherein R represents an alkyl group having 1 to 4 carbon atoms, a substituted or unsubstituted phenyl group or a substituted or unsubstituted pyridyl group; X represents a hydrogen atom or a halogen atom; and Y represents a halogen atom, and a process for preparing the same which comprises reacting 1-substituted-4-methylpyrazoles of the formula (II): ##STR2## wherein R has the same meaning as defined above, with a halogen.

REFERENCES:
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patent: 4752326 (1988-06-01), Ohyama et al.
patent: 4826867 (1989-05-01), Jensen-Korte et al.
patent: 4954164 (1990-09-01), Suzuki et al.
patent: 5053517 (1991-10-01), Takigawa et al.
(1) Advances in Heterocyclic Chemistry, vol. 6, pp. 391-392 (1966).
(2) Comprehensive Heterocyclic Chemistry, vol. 5, pp. 239-240 (1984).

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