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Comparison of the mass spectra and the mass-analysed ion kinetic energy spectra of some 5,6-diphenyl-5,6-dihydrouracils

✍ Scribed by C. Kascheres; M. N. Eberlin


Publisher
John Wiley and Sons
Year
1986
Tongue
English
Weight
210 KB
Volume
21
Category
Article
ISSN
1076-5174

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## Abstract Under electron impact, 6‐thiotheophyllines eliminate various fragments from the pyrimidine moiety. In a retro Diels‐Alder reaction, they lose the fragment Xο£ΎCο£ΎNCH~3~ from positions 1 and 2 of the pyrimidine ring. In 6‐sulfinyltheophyllines, the sulfinyl group is the main target for frag