68451-84-3Relevant academic research and scientific papers
Clean one-pot synthesis of 1,2,4-oxadiazoles under solvent-free conditions using microwave irradiation and potassium fluoride as catalyst and solid support
Rostamizadeh, Shahnaz,Ghaieni, Hamid Reza,Aryan, Reza,Amani, Ali Mohammad
scheme or table, p. 494 - 497 (2010/03/03)
Potassium fluoride was found to be an efficient catalyst and solid support for the synthesis of 3,5-disubstituted-1,2,4-oxadiazoles. In this work, a one-pot method for the synthesis of these compounds from the reaction of nitriles with hydroxylamine hydro
Parallel synthesis of 1,2,4-oxadiazoles from carboxylic acids using an improved, uronium-based, activation
Poulain, Rébecca F.,Tartar, André L.,Déprez, Benot P.
, p. 1495 - 1498 (2007/10/03)
We describe the synthesis of 1,2,4-oxadiazoles from carboxylic acids and amidoximes using 2-(1H-benzotriazole-1-yl)-1,1,3,3-tetramethyluronium tetrafluoroborate (TBTU) as an activating agent of the carboxylic acid function for the O-acylation step. This method was used for the synthesis of a library of 24 1,2,4-oxadiazoles.
SYNTHESIS AND MASS SPECTRA OF AROYLBENZAMIDOXIMES
Varella, Evangelia A.,Micromastoras, Evangelos D.,Alexandrou, Nicholas E.,Exner, Otto
, p. 596 - 607 (2007/10/02)
The synthesis of several O-aroylbenzamidoximes I and of some N-aroyl (II) as well as of bis(aroyl)benzamidoximes (III) is described and their fragmentation pattern in the mass spectra is discussed.O- and N-Aroylbenzamidoximes are distinguished on the basis of their mass spectra since the O-derivatives afford the ion corresponding to the acid +. whereas the N-derivatives the ion corresponding to the amide +H>.
