52596-85-7Relevant academic research and scientific papers
Direct synthesis of 3,5-diaryl-1,2,4-oxadiazoles using 1-(2-oxo-2-arylethyl)pyridin-1-iums with benzamidines
Zhang, Yue,Wu, Chengjun,Wan, Xinyi,Wang, Cunde
, p. 2287 - 2297 (2021/08/30)
An efficient domino protocol for the synthesis of 1,2,4-oxadiazole derivatives from readily available 1-(2-oxo-2-arylethyl)pyridin-1-iums and amidine hydrochlorides was developed. In this practical approach, N-acyl amidine precursors were formed firstly via a simple nucleophilic substitution, without the purification of N-acylamidine intermediates, and the following intramolecularly dehydrative cyclization gave 1,2,4-oxadiazole derivatives in the presence of I2/K2CO3/DMSO, which exhibited excellent functional group tolerance and proceeded under simple experimental conditions.
An efficient method for the one-pot tandem synthesis of 3,5-disubstituted-1,2,4-oxadiazoles from benzyl halides
Mirza, Behrooz
, p. 373 - 375 (2015/08/18)
The first example of a one-pot tandem approach for the synthesis of 3,5-disubstituted-1,2,4-oxadiazole derivatives from benzyl halides and amidoxime is reported. Derivatives of 3,5-disubstituted 1,2,4-oxadiazole were obtained in excellent yields under mil
Novel synthesis of 1,2,4-oxadiazoles by condensation of arylamidoximes with N-substituted iminoethers
Romdhane, Anis,Gharbi, Rafik,Mighri, Zine
, p. 151 - 156 (2007/10/03)
A new efficient route to 3,5-disubstituted-1,2,4-oxadiazoles 4a-j has been performed via the one-step reaction between arylamidoximes 1a-e and N-substituted iminoethers 2a-c. The structures of compounds 4 have been elucidated by mass spectrometry, infrared and 1H, 13C NMR measurements.
The accelerated development of an optimized synthesis of 1,2,4-oxadiazoles: Application of microwave irradiation and statistical design of experiments
Evans, Marc D.,Ring, Jessica,Schoen, Adam,Bell, Andrew,Edwards, Paul,Berthelot, Didier,Nicewonger, Robb,Baldino, Carmen M.
, p. 9337 - 9341 (2007/10/03)
Herein, we report the development of an optimized microwave-assisted synthesis of 1,2,4-oxadiazoles. The chemistry development process was significantly accelerated by employing a statistical software package (MODDE 6.0) to guide in the optimization of the reaction conditions. The resulting optimized reaction conditions were then utilized in the synthesis of a focused library of 1,2,4-oxadiazoles.
Hypervalent iodine in synthesis. 75. A convenient synthesis of oxadiazoles by palladium-catalyzed carbonylation and cyclization of diaryliodonium salts and amidoximes
Zhou, Tao,Chen, Zhen-Chu
, p. 887 - 891 (2007/10/03)
3,5-Disubstituted-1,2,4-oxadiazoles were prepared in one-pot procedure in moderate yields via the palladium-catalyzed carbonylation of diaryliodonium salts with amidoximes under one atmosphere of carbon monoxide followed by intramolecular dehydrative cycl
