338773-34-5Relevant articles and documents
HETEROCYCLIC COMPOUNDS FOR THE CONTROL OF INVERTEBRATE PESTS
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, (2021/11/20)
The invention relates to 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
PESTICIDALLY ACTIVE FUSED BICYCLIC HETEROAROMATIC AMINO COMPOUNDS
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Page/Page column 97-98, (2021/08/06)
PESTICIDALLY ACTIVE FUSED BICYCLIC HETEROAROMATIC COMPOUNDS Compounds of formula (I) wherein the substituents are as defined in claim 1, and the agrochemically acceptable salts, stereoisomers, enantiomers, tautomers and N-oxides of those compounds, can be used as insecticides.
Oxidative cyclization of 1-(pyridin-2-yl)guanidine derivatives: A synthesis of [1,2,4]triazolo[1,5-a]pyridin-2-amines and an unexpected synthesis of [1,2,4]triazolo[4,3-a]pyridin-3-amines
Ishimoto, Kazuhisa,Nagata, Toshiaki,Murabayashi, Mika,Ikemoto, Tomomi
, p. 407 - 418 (2015/03/03)
Oxidative cyclization of 1-(pyridin-2-yl)guanidine derivatives using N-chlorosuccinimide and aqueous potassium carbonate has been investigated. Chlorination of 1-(5-nitropyridin-2-yl)guanidine by N-chlorosuccinimide in methanol followed by addition of aqueous potassium carbonate gave rise to cyclization and afforded 6-nitro-[1,2,4]triazolo[1,5-a]pyridin-2-amine in one-pot. In the course of studying the scope and limitation of the reaction, it was found that some of the examined 1-(pyridin-2-yl)guanidine derivatives gave not only the desired [1,2,4]triazolo[1,5-a]pyridin-2-amines but also unexpected [1,2,4]triazolo[4,3-a]pyridin-3-amine products. As plausible reaction mechanisms of this oxidative cyclization, diazirine formation and nitrene formation are presented.