Collect. Czech. Chem. Commun. 1983, 48, 596-607

Sythesis and mass spectra of aroylbenzamidoximes

Evangelia A. Varellaa, Evangelos D. Micromastorasa, Nicholas E. Alexandroua and Otto Exnerb

a Laboratory of Organic Chemistry, University of Thessaloniki, Greece
b Institute of Organic Chemistry and Biochemistry, Czechoslovak Academy of Sciences, 166 10 Prague 6


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 [ArCOOH]+. whereas the N-derivatives the ion corresponding to the amide [ArCO+NH].