SUBSTITUTED 2-HETEROCYCLYLIMIDAZOLYLCARBOXAMIDES AS PESTICIDES
申请人:BAYER CROPSCIENCE AKTIENGESELLSCHAFT
公开号:US20190166837A1
公开(公告)日:2019-06-06
The present invention relates to compounds of the general formula (I)
in which Q, V, T, W, Y, X and A have the meanings given in the description—and to a process for preparation thereof and to the use thereof for controlling animal pests.
Study of the Features of the Reaction of Arylcyclopropanes with Nitrozonium Ethyl Sulfate or Nitrozonium Tetrafluoroborate
作者:A. Yu. Gavrilova、O. B. Bondarenko、V. N. Tikhanushkina、T. A. Solodovnikova、N. V. Zyk
DOI:10.1134/s107042802005005x
日期:2020.5
AbstractThe reactions of diaryl-, aryl-, and alkyl–arylcyclopropanes with ethyl nitrite in the presence of sulfur trioxide and sulfur trioxide dioxane complex, as well as the reactions of 1-alkyl-2-arylcyclopropanes with NOBF4 were studied. It was found that the attack of the nitrosonium cation, accompanied by the formation of a benzyl carbocation, leads to the formation of isoxazolines. The introduction
PhIO promoted synthesis of nitrile imines and nitrile oxides within a micellar core in aqueous media: a regiocontrolled approach to synthesizing densely functionalized pyrazole and isoxazoline derivatives
作者:Gargi Pal、Sanjay Paul、Partha Pratim Ghosh、Asish R. Das
DOI:10.1039/c3ra46129g
日期:——
A highly efficient and general protocol has been developed for the facile synthesis of highly diversified 1,3,5-trisubstituted pyrazoles and 3,5-disubstituted 2-isoxazolines through one-pottandem intermolecular, as well as intramolecular, dipolar [3 + 2] cycloaddition reactions. Chemoselective oxidation of aldohydrazone to nitrile imine and aldoximes to nitrile oxides by iodosobenzene in neutral aqueous
KF/Al<sub>2</sub>O<sub>3</sub>: Solid-Supported Reagent Used in 1,3-Dipolar Cycloaddition Reaction of Nitrile Oxide
作者:Monalisa Boruah、Dilip Konwar
DOI:10.1080/00397911.2011.558665
日期:2012.11.15
Abstract The stereoselective synthesis of 2-isoxazolidine through 1,3-dipolarcycloaddition reaction of nitrileoxide, which is in situgenerationfrom aldoxime in the presence of N-bromosuccinamide and solid-supported reagent KF/Al2O3 at room temperature, is reported. KF/Al2O3 is sufficiently basic such that it can replace organic bases such as Et3N used in typical procedures and it catalyses the
A practical and safe reduction methodology for the conversion of Î2-isoxazolines to 1,3-aminols is developed using polymethylhydrosiloxane-Pd(OH)2/C. In presence of (Boc)2O, the isoxazoline was converted into N-Boc protected 1,3-aminol in a one-pot procedure.