ISSN:
1434-4475
Keywords:
Diphenylphosphanyl substituted 5-fluoro-uracils
;
X-ray structure determination
;
Tautomerism
;
NMR
;
Vibrational and mass spectra
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Summary 5-Fluoro-uracil (1) reacts with chloro-diphenylphosphane to 5-fluoro-N(1), N(3)-bis(diphenylphosphanyl)uracil (3) which was characterized by X-ray crystallography, IR, and mass spectra.19F,31P{1H},13C{1H}, and1H NMR spectra indicate that3 rearranges inTHF solution to some extent to the tautomeric 5-fluoro-O(2), O(4)-bis(diphenylphosphanyl)uracil (4). If the solvent contains traces of water, Ph2P(O)-PPh2 (6) and uracil derivatives are formed by hydrolysis.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00810777
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