ISSN:
0009-2940
Keywords:
Bispyrimidotetrazines
;
Radicals, persistent
;
ESR spectra
;
Pyrimidinium salts
;
Voltammetry, cyclic
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Novel bispyrimido[1,2-b:1′,2′-e][1,2,4,5]tetrazines 3 are obtained by self-condensation of 1-amino-2-(methylthio)pyrimidinium iodides 1. Zwitterionic bispyrimidines act as intermediates and can be isolated after short heating. Compounds 3 are oxidized with bromine or perchloric acid in acetic acid to give the corresponding radical salts 4. These very stable radicals are characterized by ESR spectra and by cyclic voltammetry.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19911241221
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