3362-33-2Relevant academic research and scientific papers
Direct C(sp3)-N Radical Coupling: Photocatalytic C-H Functionalization by Unconventional Intermolecular Hydrogen Atom Transfer to Aryl Radical
Cho, Eun Jin,Hwang, Ho Seong,Kang, Jihee,Soni, Vineet Kumar
supporting information, (2020/08/12)
An unconventional approach for intermolecular direct C(sp3)-N radical coupling has been developed by photocatalytic C(sp3)-H activation of simple alkyl substrates using O-benzoyl oximes. The selective photocatalytic energy-transfer-driven homolysis followed by decarboxylation generates the persistent iminyl radical and aryl radical, which would undergo an unprecedented intermolecular hydrogen atom abstraction from the alkyl substrate to provide the key C(sp3) radical. Selective radical-radical C-N cross-coupling furnishes imines which are valuable amine building blocks.
A novel synthesis of carboxylic acid oxime esters catalyzed by 2-(1H-benzotriazole-1-yl)-1,1,3,3-tetramethyluronium tetrafluoroborate
Shi, Wei,Zhang, Jiming,Zhou, Qin,Wang, Xingjian,Qi, Xiaowei,Guo, Lianyong,Ma, Wanyong,Zhou, Jianhua
, p. 7125 - 7128 (2015/04/22)
We describe a facile synthesis of carboxylic acid oxime esters in acetonitrile from the corresponding carboxylic acids and oximes catalyzed by 2-(1H-benzotriazole-1-yl)-1,1,3,3-tetramethyluronium tetrafluoroborate in the presence of triethylamine at room temperature under mild conditions.
A convenient practical synthesis of alkyl and aryl oxime esters
Santosh Kumar, S. Chandrappa,Vijendra Kumar, Nanjundaswamy,Srinivas, Pullabhatla,Bettadaiah, Bheemanakere Kempaiah
, p. 1847 - 1852 (2014/07/22)
A facile access to the synthesis of alkyl and aryl oxime esters of ketoximes and aldoximes in high yields (90-97%) is reported. The reactions were performed using N-[3-(methylamino)propyl]-N′-ethylcarbodiimide hydrochloride (EDCI) reagent in the presence of 4-(dimethylamino)pyridine (DMAP) as a catalyst at room temperature. The isolation and purification of products is very simple and in cases where product is solid, column chromatography is avoided. Georg Thieme Verlag Stuttgart New York.
N-substituted imines by the copper-catalyzed N-imination of boronic acids and organostannanes with O-acyl ketoximes
Liu, Songbai,Yu, Ying,Liebeskind, Lanny S.
, p. 1947 - 1950 (2008/02/02)
Catalytic quantities of copper(I) or copper(II) sources catalyze the N-imination of boronic acids and organostannanes through reaction with oxime O-carboxylates under nonbasic conditions. This method tolerates various functional groups and takes place efficiently using aryl, heteroaryl, and alkenyl boronic acids and stannanes.
(E)-Phenyl- and -heteroaryl-substituted O-benzoyl-(or acyl)oximes as lipoprotein-associated phospholipase A2 inhibitors
Jeong, Tae-Sook,Kim, Mi Jeong,Yu, Hana,Kim, Kyung Soon,Choi, Joong-Kwon,Kim, Sung-Soo,Lee, Woo Song
, p. 1525 - 1527 (2007/10/03)
A series of (E)-phenyl- and -heteroaryl-substituted O-benzoyl- (or acyl)oximes 3a-n were synthesized for evaluating their human lipoprotein-associated phospholiphase A2 (Lp-PLA2) inhibitory activities. The less lipophilic derivatives 3a-c showed the most potent in vitro inhibitory activity on human Lp-PLA2.
Fungicadal activity of O-esters of benzophenone oximes
Massolini,Carmellino,Baruffini
, p. 747 - 749 (2007/10/02)
Some acyl- and aroyl derivatives of benzophenone oximes variously benzene substituted were prepared and tested in vitro and in vivo against fungal plant pathogens of different taxonomic classes. The tested compounds showed remarkable activity, especially
PHOTOCHEMICAL ARYLATION BY OXIME ESTERS IN BENZENE AND PYRIDINE: SIMPLE SYNTHESIS OF BIARYL COMPOUNDS
Hasebe, Masato,Kogawa, Koichi,Tsuchiya, Takashi
, p. 3887 - 3890 (2007/10/02)
Irradiation of benzophenone O-arenecarbonyloximes in benzene and pyridine affords the corresponding arylbenzenes and arylpyridines, respectively, in high yields.
