13181-10-7Relevant academic research and scientific papers
Experimental evidence of chalcogen bonding at oxygen
Fellowes, Thomas,Harris, Benjamin L.,White, Jonathan M.
supporting information, p. 3313 - 3316 (2020/04/02)
An o-nitro-O-Aryl oxime was observed to exhibit a short O?O contact, which exhibited characteristics consistent with a chalcogen bond. The O-N bond length of the oxime was appreciably longer than the expected value, and NBO calculations indicated the presence of a n(O) → (O-N) orbital delocalisation. Topological analysis of the experimental electron density of two analogues shows the presence of a bond path between the two oxygen atoms, with (r) and 2(r) values consistent with an electrostatic interaction. Finally, electrostatic potential calculations indicate the presence of a-hole, the smoking gun indicating a Ch-bond. These results are unusual as oxygen is not typically considered to be a Ch-bond donor, especially in unactivated systems such as oximes.
Nucleofuge effect: The kinetic and mechanistic studies of the reactions of some O-aryloximes and phenyl naphthyl ether with n-butylamine in acetonitrile
Bhattacharjee, Gurudas,Singh, Ashok Kumar,Singh, Rupam,Gairola, Priti
, p. 95 - 99 (2007/10/03)
The aminolysis reactions of O-(2′,4′-dinitrophenyl)-2-naphthol (DNPN), O-(2′,4′-dinitrophenyl)indanoneoxime (DNPIO), and O-(2,4-dinitrophenyl)propanoneoxime (DNPPO) have been carried out with n-butylamine in acetonitrile at 35 ± 0.1°. The coloured product
FORMATION OF O,N-DISUBSTITUTED HYDROXYLAMINES AND KETOXIME ESTERS IN REACTIONS BETWEEN TRIAZENE 1-OXIDES AND BASES
Zlotin, S. G.,Prokshits, O. V.,Strelenko, Yu. A.,Luk'yanov, O. A.
, p. 1895 - 1900 (2007/10/02)
A new method has been put forward for the synthesis of O,N-disubstituted hydroxylamines and ketoxime esters that is based on the reaction of triazene 1-oxides containing strong electron-withdrawing substituents with bases.Keywords: O,N-disubstituted hydroxylamines, ketoximes, triazene 1-oxides, aryldiazonium tetrafluoroborates, bases.
REACTION OF ARYLDIAZONIUM SALTS WITH ACETONE OXIME
Zlotin, S. G.,Prokshits, O. V.,Luk'yanov, O. A.
, p. 1495 - 1496 (2007/10/02)
The reaction of aryl diazonium salts containing electron-withdrawing substituents in the aromatic ring with acetone oxime leads to the formation of nitrogen-containing products instaed of the expected functional derivatives of 1-alkyl-3-aryltriazene 1-oxides.The structure of these products is a function of the number and chemical nature of the substituents in the diazo component. Keywords: aryldiazonium, triazene, triazene oxide, acetone oxime.
Oxime ethers and pesticidal preparations containing them
-
, (2008/06/13)
New oxime ethers and pesticidal and herbicidal preparations containing them are disclosed. The oxime ethers correspond to the formula SPC1 Wherein R1 is a hydrogen atom or a lower alkyl radical; R2 is an aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic radical; or wherein R1 and R2 form part of a saturated or unsaturated carbocycle or a 5-, 6- or 7-membered heterocycle; R3 is nitro, trifluoromethyl, formyl, lower carbalkoxy, sulfamyl or mono- or di-lower alkyl fulfamyl radical; R4- and R5 each is a hydrogen or halogen atom, an amino, mono- or di-lower alkyl amino, lower alkoxy, cycloalkoxy, lower alkylthio, nitro, lower carbalkoxy, arylthio, lower aralkylthio or lower alkyl group, or 5-, 6- or 7-membered heterocycle.
