393870-46-7Relevant academic research and scientific papers
Novel bifenthrin derivatives, and preparation method and application thereof
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Paragraph 0092-0103, (2019/08/30)
The invention discloses novel bifenthrin derivatives, and a preparation method and application thereof. The novel bifenthrin derivatives have a structural formula as shown in a formula (I) which is described in the specification. In the formula (I), when R1 is H, R2 is a Cl or CF3 substituent group, and R3 is H or a substituted or unsubstituted non-heterocyclic or heterocyclic aryl group; when R1is a Cl substituted group, R 2 is H or a Cl or CF3 substituent group, and R3 is H or a substituted or unsubstituted non-heterocyclic or heterocyclic aryl group; the non-heterocyclic aryl group is a phenyl, naphthyl, anthryl, phenanthryl or pyrenyl group; and the heterocyclic aryl group is a five-to-nine-membered monocyclic or polycyclic heterocyclic aryl group with one or more O or S heteroatoms.According to the invention, a series of the novel bifenthrin derivatives are synthesized mainly by modifying and transforming ortho-position and terminal-position benzene rings on the intermediate benzene rings of bifenthrin; and the novel bifenthrin derivatives have excellent insecticidal and mosquito-killing effect on both larvae and adult mosquitoes, are significantly reduced in toxicity and improved in metabolic stability, and shows good application prospects.
Synthesis and characterization of novel N-acyl cyclic urea derivatives
Yang, Tingting,Gao, Guohua
experimental part, p. 304 - 316 (2012/06/29)
A series of novel N-acyl cyclic urea derivatives (3a-3l) have been synthesized by the reactions of 1-((6-chloropyridin-3-yl)methyl)imidazolidin-2- one (1) with various acyl chlorides in the yields of 35-95%. Subsequently, N-acyl cyclic urea derivatives co
Process for the preparation of enantiomerically pure pyrethroid insecticides
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, (2008/06/13)
A process for producing compounds of formula (VIIa) and (VIIb) wherein X is a leaving group; Y and Y1 are idependently Cl or Br; and Z is Cl, Br or a haloalkyl group which process comprises a) reacting a compound of formula (VII) wherein X, Y, Y1 and Z are as defined for compounds (VIIa) and (VIIb) with a substantially optically pure chiral amine in a solvent to form a diastereoisomeric salt; b) separating the diastereomeric salt of each enantiomer; c) converting the diastercomeric salt of each anantiomer separately to compounds of formulae (VIIa) and (VIIb) respectively by acid or base hydrolysis, the use of the compounds in making pyrethroid insecticides and novel intermediates.
4-Heterocyclic-substituted-2-indanyl alcohols and insecticidal ester derivatives
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, (2008/06/13)
Disclosed are novel compounds of the formula STR1 wherein R1 is a heterocyclic radical selected from furanyl, thienyl, pyridyl, pyrimidyl, oxazolyl, pyrrolyl, isoxazolyl, thiazolyl, and isothiazolyl, and R2 is hydrogen, a tetramethylcyclopropanecarbonyl group, a 1-(substituted-phenyl)-2-methylpropyl-1-carbonyl group, a 1-(4-ethoxyphenyl)-2,2-dichlorocyclopropanecarbonyl group, or a substituted-vinylcyclopropanecarbonyl group. The compounds wherein R2 is other than hydrogen are insecticides.
4-Heterocyclic-substituted-2-indanyl alcohols and insecticidal ester derivatives
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, (2008/06/13)
Disclosed are novel compounds of the formula STR1 wherein R1 is a heterocyclic radical selected from furanyl, thienyl, pyridyl, pyrimidyl, oxazolyl, pyrrolyl, isoxazolyl, thiazolyl, and isothiazolyl, and R2 is hydrogen, a tetramethylcylopropanecarbonyl group, a 1-(substituted-phenyl)-2-methylpropyl-1-carbonyl group, a 1-(4-ethoxyphenyl)-2-dichlorocyclopropanecarbonyl group, or a substituted-vinyl-cyclopropanecarbonyl group. The compounds wherein R2 is other than hydrogen are insecticides.
4-Heterocyclic-substituted-2-indanyl alcohols and insecticidal ester derivatives
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, (2008/06/13)
Disclosed are novel compounds of the formula STR1 wherein R1 is a heterocyclic radical selected from furanyl, thienyl, pyridyl, pyrimidyl, oxazolyl, pyrrolyl, isoxazolyl, thiazolyl, and isothiazolyl, and R2 is hydrogen, a tetramethylcyclopropanecarbonyl group, a 1-(substituted-phenyl)-2-methylpropyl-1-carbonyl group, a 1-(4-ethoxyphenyl)-2,2-dichlorocyclopropanecarbonyl group, or a substituted-vinylcyclopropanecarbonyl group. The compounds wherein R2 is other than hydrogen are insecticides.
Insecticidal (2,6-dimethyl-3-substituted phenyl)methyl cyclopropanecarboxylates
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, (2008/06/13)
(2,6-Dimethyl-3-substituted phenyl)methyl cyclopropanecarboxylates and insecticidal compositions containing these esters are useful for the control of a broad range of insects and acarids.
(+)-4-Substituted-2-indanols
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, (2008/06/13)
Novel compounds of the formula STR1 are disclosed in which R1 is a phenyl, phenoxy, phenylthio, benzyl or heterocyclic radical which may be substituted, R2 is hydrogen, a substituted-vinylcyclopropanecarbonyl group, a tetramethylcyclopropanecarbonyl group, or a 1-(substituted-phenyl)-2-methylpropylcarbonyl group, and the isomer of S configuration at C-2 of the indanyl ring is present in an enantiomeric excess over the isomer of R configuration. Also disclosed is a method for preparing the optically active alcohols. The compounds wherein R2 is other than hydrogen are insecticides.
Process for producing (+)-4-substituted-2-indanols
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, (2008/06/13)
Novel compounds of the formula STR1 are disclosed in which R1 is a phenyl, phenoxy, phenylthio, benzyl or heterocyclic radical which may be substituted, R2 is hydrogen, a substituted-vinylcyclopropanecarbonyl group, a tetramethylcyclopropanecarbonyl group, or a 1-(substituted-phenyl)-2-methylpropylcarbonyl group, and the isomer of S configuration at C-2 of the indanyl ring is present in an enantiomeric excess over the isomer of R configuration. Also disclosed is a method for preparing the optically active alcohols. The compounds wherein R2 is other than hydrogen are insecticides.
Insecticidal pyrethroid enantiomer pair
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, (2008/06/13)
An insecticidal enantiomer pair consisting essentially of a substantially equimolar mixture of S-4-phenyl-2-indanyl 1R, cis-3-(2-chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethylcyclopropanecarboxylate and R-4-phenyl-2-indanyl 1S,cis-3-(2-chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethylcyclopropanecarboxylate, its preparation by liquid chromatography, and its utility as an insecticide are described and exemplified.
