cas 40953-34-2, 4,5-Dicyano-2-aminoimidazole | Articles data ｜lookchem

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40953-34-2

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2-imidazol(in)e substituted aryl-1,2,3-triazole pesticides
Compounds of formula I STR1 and salts thereof, in which Ar, W, Z, A, R1-7, Y, m, p and n have the meanings given in the description, have pesticidal activity especially against insects, acarids and animal endoparasites.
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(2008/06/13)

Reactivity of Carbenes and Related Compounds towards Molecular Nitrogen
The thermal N2 exchange of a number of 15N-labelled diazo compounds was studied in solution.The compounds involved were 3-diazo-1-methylindolin-2-one (1), 9-diazafluorene (2), 5-diazo-1,3-cyclopentadiene-1,2,3,4-tetracarbonitrile (3), 2-diazo-2H-imidazole-4,5-dicarbonitrile (4), 4-diazocyclohexa-2,5-dienone (5), and the conjugate acids of 4 and 5, namely 4,5-dicyano-1H-imidazole-2-diazonium ion (6) and 4-hydroxybenzenediazonium ion (7).Only 1, 4, 6, and 7 exchange their diazo group with 'external' molecular N2.The results are explained on the hypothesis that only organic species which have an empty ? orbital and which are effective in ? electron back-donation are able to react with N2.Thus, reaction with carbenes is likely to occur only if the carbene is in the 1A2 singlet state and if its electrophilicity is high.
Grieve, Duncan M. A.,Lewis, Graham E.,Ravenscroft, Michael D.,Skrabal, Peter,Sonoda, Takaaki,et al.
p. 1427 - 1443
(2007/10/02)

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Chemical Properties

Appearance/Colour :white or similar to white solid
Melting Point: 270 °C (dec.)(lit.)
Boiling Point: 587.3 °C at 760 mmHg
Flash Point:309 °C
Density: 1.54 g/cm³
Storage Temp.:Keep in dark place,Sealed in dry,Room Temperature
Vapor Pressure: 8.95E-14mmHg at 25°C
Refractive Index: 1.647
PKA: 6.19±0.10(Predicted)
PSA: 102.28000
LogP: 0.31646

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