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ESR study of radical products from 1,3-dimethyl-4-alkylamino-5-nitrosouracils

L. Omelka, A. Staško, T. Gondová, J. Gonda, and P. Králik

Department of Physical Chemistry, Faculty of Chemical Technology, Slovak Technical University, CS-81237 Bratislava

 

Abstract: In the reaction of l,3-dimethyl-4-alkylamino-5-nitrosouracils with peroxy radicals formation of radicals of the iminoxyl type has been proved by ESR spectroscopy. The splitting constant and the g-factor values were as follows: aN(NO) ≐ 3.2 mT, aN(NCH2R) ≐ 0.29 mT, aH(CH2R) ≐ 0.17 mT, and g = 2.0050. In the reaction with Pb(CH3COO)4 also formation of acyloxyl adducts to the nitroso group was observed.

Full paper in Portable Document Format: 432a253.pdf

 

Chemical Papers 43 (2) 253–258 (1989)

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