Herbicidal 4-substituted pyridyl-3-carbinols

Details Herbicidal 4-substituted pyridyl-3-carbinols Herbicidal 4-substituted pyridyl-3-carbinols

1993-04-22

1994-05-03

Ivy, C. Warren

Plant protecting and regulating compositions

Plant growth regulating compositions

Plural active ingredients

504130, 544 60, 544124, 546261, 546286, 546288, 546290, 546294, 546296, 546297, 546301, 546302, 546304, 546343, 546275, C07D21316, A61K 3144

Patent

active

053088263

ABSTRACT:
4-substituted pyridyl-3-carbinols of the formula ##STR1## wherein R is hydrogen, or an acyl, alkyl or carbamyl group exhibit desirable preemergent and postemergent herbicidal activity. Also disclosed are herbicidal compositions comprising such compounds and; a method of controlling undesirable vegetation employing such compounds. The compounds wherein AR is hydroxyl serve as useful intermediates for the production of the alpha-benzyl substituted compounds as well as exhibiting herbicidal activity.

REFERENCES:
patent: 4116665 (1978-09-01), Krumkains
patent: 4407806 (1983-10-01), Cherpeck
Radinov et al., "Synthesis of 4-Amino-3-pyridinyl and 4-Amino-5-pyrimidinyl Aryl Ketones and Related Compounds via an ortho-Lithiation Reaction", Synthesis, pp. 886-891, Nov. 1986.
Marsais et al., "Directed Lithiation of 4-Halopyridines: Chemoselectivity, Regioselectivily and Application of Synthesis", J. Heterocyclic Chem., vol. 25, pp. 81-87 (1988).

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