Preparation of exo- and endocyclic aminoxyl radicals of 2-Amino-substituted quinazolin-4(3H)-ones

作者: Ladislav Omelka , Jan Světlik

DOI: 10.1002/MRC.1260331015

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摘要: 2-Amino-substituted quinazolin-4(3H)-ones were oxidized with RO2· radicals and 4-nitroperoxybenzoic acid. Two types of radical products, i.e. exo- endocyclic aminoxyl radicals, observed. Their differentiation was carried out on the basis ESR parameters.

参考文章(10)
Hans Günter Aurich, Wolfram Weiss, Nitroxide, XI. Darstellung und Umwandlung von 3-Oxo-3H-indolyl-(2)-nitroxiden Chemische Berichte. ,vol. 105, pp. 2389- 2397 ,(1972) , 10.1002/CBER.19721050732
Ladislav Omelka, Michael Reinhardt, Ralph Kluge, Manfred Schulz, Oxidation of cyclic N-(arylamino)imides. An EPR study of hydrazoxyl radicals Collection of Czechoslovak Chemical Communications. ,vol. 53, pp. 243- 250 ,(1988) , 10.1135/CCCC19880243
Toshio Nishikawa, Kazuo Someno, The ESR of Alkyl Phenyl Nitroxide Radicals Studied as Hindered Rotation Bulletin of the Chemical Society of Japan. ,vol. 47, pp. 2881- 2882 ,(1974) , 10.1246/BCSJ.47.2881
Toshimasa Toda, Eiko Mori, Keisuke Murayama, Studies on Stable Free Radicals. IX. Peroxy Acid Oxidation of Hindered Secondary Amines to Nitroxide Radicals Bulletin of the Chemical Society of Japan. ,vol. 45, pp. 1904- 1908 ,(1972) , 10.1246/BCSJ.45.1904
J. SVETLIK, A NOVEL SYNTHESIS OF 2-SUBSTITUTED QUINAZOLIN-4(3H)-ONES ChemInform. ,vol. 12, pp. 1281- ,(1981) , 10.1002/CHIN.198152231
Hans Günter Aurich, Friedrich Baer, Nitroxide, V. Beziehungen zwischen den ESR-Kopplungskonstanten und der Konformation bei Azomethin-nitroxiden Chemische Berichte. ,vol. 101, pp. 1770- 1782 ,(1968) , 10.1002/CBER.19681010531
J. R. Thomas, THE IDENTIFICATION OF RADICAL PRODUCTS FROM THE OXIDATION OF DIPHENYLAMINE Journal of the American Chemical Society. ,vol. 82, pp. 5955- 5956 ,(1960) , 10.1021/JA01507A044
Charles E. Boozer, George S. Hammond, MOLECULAR COMPLEX FORMATION IN FREE RADICAL REACTIONS Journal of the American Chemical Society. ,vol. 76, pp. 3861- 3862 ,(1954) , 10.1021/JA01643A088
Ladislav Omelka, Michael Meske, Vladimír Cholvad, Jan Světlík, Manfred Schulz, EPR Study of Nitroxyl Radicals of Substituted 5-Anilinotriazoles, 5-Anilinotetrazoles, and 2-Anilinobenzimidazoles Collection of Czechoslovak Chemical Communications. ,vol. 57, pp. 1065- 1071 ,(1992) , 10.1135/CCCC19921065