56587-83-8Relevant academic research and scientific papers
Synthesis of acetophenone azine
Love,Tsai
, p. 165 - 170 (1992)
Conditions for preparing acetophenone azine via the oxidative dimerization of acetophenone imine anion are investigated.
Pd-Catalyzed Coupling of Thioamides with N-Tosylhydrazones/Trapping by Esters Cascade Reaction
Cai, Zhongliang,Yao, Zhi,Jiang, Liqin
, p. 311 - 316 (2021/01/26)
N,N-Disubstituted thioamides coupled with N-tosylhydrazones under Pd(TFA)2/tBuXPhos catalyst and NaOtBu, and the intermediates from palladium carbene migratory insertion containing β-hydrogen were trapped by intramolecular esters activated by BF3·Et2O ins
Cp*Co(III)-catalyzed C[sbnd]H amidation of azines with dioxazolones
Huang, Yanzhen,Pi, Chao,Tang, Zhen,Wu, Yangjie,Cui, Xiuling
supporting information, p. 3237 - 3240 (2020/09/15)
Cp*Co(III)-catalyzed direct C[sbnd]H amidation of azines has been developed. This conversion could proceed smoothly in the absence of external oxidants, acids or bases, with excellent regioselectivity and broad functional group tolerance. CO2 w
One-pot synthesis of [1,2,4]Triazolo[1,5-a]pyridines from azines and benzylidenemalononitriles via copper-catalyzed tandem cyclization
Lv, Jianguang,He, Zhiqing,Zhang, Jianmin,Guo, Yuwei,Han, Ziwei,Bao, Xinhua
supporting information, p. 3996 - 4004 (2018/06/20)
A simple and efficient copper-catalyzed tandem radical cyclization reaction has been discovered for the synthesis of triaryl [1,2,4]triazolo[1,5-a]pyridines from easily accessible azines and benzylidenmalononitriles. The new transformation involves multip
Rh-Catalyzed Regioselective ortho-C-H Carbenoid Insertion of Diarylazines
Yu, Yunliang,Kuai, Changsheng,Chauvin, Remi,Tian, Nian,Ma, Shuangshuang,Cui, Xiuling
, p. 8611 - 8616 (2017/08/23)
The Rh-catalyzed ortho-C-H carbenoid insertion reaction of diarylazines with diazo compounds has been developed. A wide range of ortho-substituted diarylazines have been obtained in moderate to high yields with high regioselectivity at room temperature. The hydrolysis of the products could release ketones or aldehydes, giving access to aromatic 1,5-keto-diesters as valuable synthons for further chemical transformations.
Hydrohydrazination of Arylalkynes Catalyzed by an Expanded Ring N-Heterocyclic Carbene (er-NHC) Gold Complex under Solvent-Free Conditions
Morozov, Oleg S.,Gribanov, Pavel S.,Asachenko, Andrey F.,Dorovatovskii, Pavel V.,Khrustalev, Victor N.,Rybakov, Viktor B.,Nechaev, Mikhail S.
supporting information, p. 1463 - 1468 (2016/05/19)
[(THD-Dipp)AuOTf], supported by the strongly electron donating, sterically bulky THD-Dipp (1,3-bis(2,6-diisopropylphenyl)hexahydro-2H-1,3-diazepine-2-ylidene) seven-membered N-heterocyclic carbene ligand, efficiently promotes intermolecular addition of Ts- and Boc-hydrazine to arylalkynes under solvent-free conditions.
Photophysical properties of di-Schiff bases: Evaluating the synergistic effect of non-covalent interactions and alkyl spacers in enhanced emissions of solids
Das, Moyna,Baig, Fayaz,Sarkar, Madhushree
, p. 57780 - 57792 (2016/07/06)
Photophysical properties of di-Schiff base compounds in the solution and solid states are explored. The di-Schiff bases with alkyl spacers (ethyl, butyl and hexyl) showed enhanced light emitting properties in the solid state, while quenching was observed for di-Schiff bases with a hydrazine spacer. The photoluminescence spectra and the crystal structure were compared with bis-pyridyl-ethyl-di-imine and bis-pyridyl-butyl-di-imine. The crystal structure analysis of the compounds rationalizes the observed results. The concentration dependent 1H-NMR and NOESY spectra showed the aggregation behaviour of the compounds.
Rhodium(III)-catalyzed coupling of aromatic ketazines or oximes with 2-vinyloxirane via C-H activation
Wen, Jing,Wu, An,Miao, Yuqin,Zhu, Jin
supporting information, p. 5512 - 5516 (2015/09/21)
Described herein is a rhodium(III)-catalyzed coupling of aromatic ketazines or oximes with 2-vinyloxirane via directed C-H activation. This reaction proceeds efficiently under mild conditions with a low catalyst loading, especially in conditions with room temperature in the absence of additives for aromatic ketazines. A wide range of substituted substrates is supported and a possible mechanism is proposed according to the experimental results of kinetic isotopic effect, reversibility studies, and catalysis with rhodacycle intermediate c1.
Rh-catalyzed sequential oxidative C-H and N-N bond activation: Conversion of azines into isoquinolines with air at room temperature
Han, Wenjia,Zhang, Guoying,Li, Guangxing,Huang, Hanmin
supporting information, p. 3532 - 3535 (2014/07/21)
A rhodium-catalyzed sequential oxidative C-H annulation reaction between ketazines and internal alkynes has been developed via C-H and N-N bond activation with air as an external oxidant, which led to an efficient approach toward isoquinolines with high atom efficiency at rt. Utilizing the distinctive reactivity of this catalysis, both N-atoms of the azines could be efficiently incorporated to the desired isoquinolines under very robust and mild reaction conditions.
Highly efficient practical procedure for the synthesis of azine derivatives under solvent-free conditions
Safari,Gandomi-Ravandi
experimental part, p. 645 - 651 (2011/04/15)
A general and useful method for the synthesis of azines of aromatic aldehydes and ketones in good yields was elaborated. This reaction is carried out under solvent-free conditions and in the absence of catalyst to afford good yields of the relevant azines. The reaction is also environmentally friendly without the inconvenience of undesired by-products and has advantages over the previously reported methods. Products were characterized by the usual procedures (infrared, 1H NMR, and 13C NMR).
