The invention relates to isoxazoline compounds of formula (I) wherein the variables have the meanings as defined in the specification, to compositions comprising them, to active compound combinations comprising them, and to their use for protecting growing plants and animals from attack or infestation by invertebrate pests, furthermore, to seed comprising such compounds.
4-Azolylphenyl isoxazoline insecticides acting at the GABA gated chloride channel
摘要:
Isoxazoline insecticides have been shown to be potent blockers of insect GABA receptors with excellent activity on a broad pest range, including Lepidoptera and Hemiptera. Herein we report on the synthesis, biological activity and mode-of-action for a class of 4-heterocyclic aryl isoxazoline insecticides. (C) 2013 Elsevier Ltd. All rights reserved.
Palladium-Catalyzed Trimethylenemethane Cycloaddition of Olefins Activated by the σ-Electron-Withdrawing Trifluoromethyl Group
作者:Barry M. Trost、Laurent Debien
DOI:10.1021/jacs.5b07573
日期:2015.9.16
α-Trifluoromethyl-styrenes, trifluoromethyl-enynes, and dienes undergo palladium-catalyzed trimethylenemethane cycloadditions under mild reaction conditions. The trifluoromethyl group serves as a unique σ-electron-withdrawing group for the activation of the olefin toward the cycloaddition. This method allows for the formation of exomethylene cyclopentanes bearing a quaternary center substituted by
The invention relates to novel arylpyrroline compounds of formula (I) which have excellent insecticidal activity and which can thus be used as an insecticide.
The invention relates to novel arylpyrroline compounds of formula (I) which have excellent insecticidal activity and which can thus be used as an insecticide.
The invention relates to novel arylpyrroline compounds of formula (I) which have excellent insecticidal activity and which can thus be used as an insecticide.
employed because of facile β-fluoride elimination pathways. Herein, we report a hydroalkylation of trifluoromethylalkenes with alkyl halides under nickel catalysis that enables the rapid construction of 1,1,1-trifluoropropane derivatives. The common β-fluoride elimination pathway is suppressed by identifying a competent proton donor that favors a protonolysis process. Also, unactivated alkenes could be