200802-48-8Relevant academic research and scientific papers
Palladium-Catalyzed C-N Bond Cleavage of 2 H-Azirines for the Synthesis of Functionalized α-Amido Ketones
Xu, Fen,Si, Xiao-Ju,Song, Yuan-Yuan,Wang, Xing-Dong,Liu, Chun-Sen,Geng, Peng-Fei,Du, Miao
, p. 2200 - 2208 (2019/05/16)
A Pd-catalyzed ring-opening reaction of 2H-azirines with carboxylic acids was developed. This reaction undergoes nucleophilic addition between 2,3-diaryl-2H-azirines and carboxylic acids followed by C-N single-bond cleavage and a subsequent thermal rearrangement. This method enables the rapid construction of valuable α-amido ketone derivatives with high atomic efficiency and superb functional group tolerance.
Method for synthesizing alpha-amino ketone derivatives
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Paragraph 0146-0152, (2019/01/14)
The invention discloses a method for synthesizing alpha-amino ketone derivatives. The method is characterized in that a series of alpha-amino ketone derivatives are obtained by providing a mixed reaction system containing 2H-aziridine, carboxylic acid com
Synthesis, structure, and photophysical properties of polyarylated imidazoles and oxazoles
Buttke, Klaus,Baumgaertel, Helmut,Niclas, Hans-Joachim,Schneider, Matthias
, p. 721 - 728 (2007/10/03)
23 tetraphenylimidazoles 1,2 and 11 triphenyl-oxazoles 4,5 with amino, nitro, methoxy, hydroxy, or halogeno substituants chiefly in the para position were prepared. The absorption and fluorescence emission properties were investigated in ethanolic solution. The effects of the substituents in 1,2 on the spectral shifts show that the arrangement of the phenyl rings in 1 position is not coplanar in relation to the heterocycle whereas the phenyl rings in 2 position are more coplanar. The spectral changes of compound 2a in solvents of various polarity (dielectric constants 2,02-47,24) are almost negligible. The Stokes shift is moderately increased. A remarkable increase in the fluorescence quantum yield is observed by chlorine substitution in phenyl ring 2.
