BENZYLPYRROLYLMETHANOLE

• Main Authors: TADASHI OHSUMI, NOBUSHIGE ITAYA, MASACHIKA HIRANO
• Format: Patent
• Language: German
• Published: 15.12.1983
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES; CHEMISTRY; FISHING; FORESTRY; HETEROCYCLIC COMPOUNDS; HUMAN NECESSITIES; HUNTING; METALLURGY; ORGANIC CHEMISTRY; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS; PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF; TRAPPING

Carboxylic acid esters of the formula (I), (I) wherein X is a hydrogen atom, or a C1-C3 alkyl or a C1-C3 alkoxyl group or a halogen atom linked to the meta or para position and R1 is a group of the formula (II) or (III), wherein R2 is a hydrogen atom or a methyl group, and when R2 is a methyl group R3 is also a methyl group, and when R2 is a hydrogen atom R3 is a group of the formula, (wherein R5 is a halogen atom or a C1-C3 alkyl, vinyl or a C1-C3 alkoxymethyl group, R6 is a hydrogen or halogen atom or a methyl group, or, taken together, R5 and R6 may form a tetramethylene group by connecting together at ends thereof), R4 is a halogen atom or a C1-C3 alkyl, C1-C3 alkoxyl or 3,4-methylenedioxy group, n is 1 or 2 and Y is a isopropyl or cyclopropyl group. These carboxylic acid esters are produced by reacting the reactive derivatives of a carboxylic acid represented by the formula, wherein R1 is a group of the formula (II) or (III), wherein R2, R3, R4, n and Y are as defined above, and Z is a halogen atom, with an alcohol of the formula (IV), (IV) wherein X is as defined above, in the presence of an acid-binding agent. These carboxylic acid esters are useful as insecticides and acaricides.