Process for preparing 1,2,4-triazole derivatives

Details Process for preparing 1,2,4-triazole derivatives Process for preparing 1,2,4-triazole derivatives

1977-02-28

1978-10-31

Rollins, Alton D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260308C, 424200, C07D24912, C07F 965

Patent

active

041234375

ABSTRACT:
1,2,4-TRIAZOLE DERIVATIVES WHICH HAVE PARTICULAR IMPORTANCE AS INTERMEDIATES FOR, E.G., THE PREPARATION OF ACTIVE SUBSTANCES FOR PEST CONTROL, CORRESPONDING TO THE FORMULA ##STR1## wherein R.sup.1 represents an unsubstituted or substituted alkyl, alkenyl, or alkynyl, naphthyl, benzyl, phenylethyl, ##STR2## or phenylpropyl radical, or a mono or polycyclic cycloalkyl radical which can be bound by way of an alkylene bridge member, or a substituted phenyl radical,
And new processes for the preparation of compounds of the formula ##STR3## wherein R represents hydrogen, an optionally substituted alkyl, alkenyl or alkynyl radical, an optionally substituted phenyl, naphthyl, benzyl, phenylethyl or phenylpropyl radical, a mono- or polycyclic cycloalkyl radical which can be bound by way of an alkylene bridge member and/or be substituted by alkyl, or a partially hydrogenated naphthyl radical, which processes are performed by addition to a hydrazine of the formula

REFERENCES:
patent: 3701784 (1972-10-01), Seidel et al.
patent: 3862125 (1975-01-01), Hoffman et al.
Elderfield, Heterocyclic Compounds, vol. 7, p. 440 (New York, 1961).
Arndt et al., Ber. Deut. Chem. Gesellschaft, vol. 76, pp. 2276-2283 (1923).

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