Organic compounds and process

Details Organic compounds and process Organic compounds and process

1976-04-28

1978-04-18

Hollrah, Glennon H.

Chemistry: fertilizers

Processes and products

Forms or conditioning

71 67, 71 76, 71 88, 71 90, 71DIG1, 260239E, 260239A, 260239B, 260239BF, 260250B, 260268C, 26029359, 2603268, 544140, 544 60, 548376, A01N 922, C07D23114

Patent

active

040849554

ABSTRACT:
Certain new 1-(substituted-hydrocarbyl)-di- and trihalopyrazoles have been synthesized. They possess herbicidal and plant growth regulatory activity. The hydrocarbyl group, i.e., alkylene or alkenylene group at the 1-nitrogen of the pyrazole nucleus has either a carboxyl group, an hydroxymethyl group, an hydroxymethyl lower-alkanoate group, a carboxylic lower-alkyl ester group, a cyano group, or a carboxylic amide group. The new compounds are prepared and isolated by conventional chemical reactions and procedures. An improved reaction for making the new carboxylic acids is described. Weed control methods and compositions for herbicidal use are also described.

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patent: 3957480 (1976-05-01), Kornis
Giles et al., "Some Iodinated Pyrazole Derivatives," (1966), J. Chem. Soc., pp. 1179-1184, (1966).
Vinokurov et al., "I.R. Spectra of 4-Acylpyrazoles etc.," (1963), CA59, pp. 1615-1616, (1963).
Michaelis et al., "1-Acid Derivatives of 3-Methyl, etc.," (1910), CA4, pp. 2827-2828, (1910).
Habraken et al., "Pyrazoles II. Ionization Constants, etc.," (1966), CA66, No. 85355e., (1967).

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