Pteridine studies: III—13C n.m.r. data of pteridine,some of its derivatives and their covalent σ-adducts with ammonia and water |
| |
Authors: | J. P. Geerts A. Nagel H. C. van der Plas |
| |
Abstract: | 13C n.m.r. spectral data of pteridine and nineteen of its derivatives (containing one or more chloro, methylthio, methyl, t-butyl or phenyl substituents) are reported. The 13C n.m.r. spectrum of the title compound has been assigned conclusively. 13C n.m.r. substituent effects are shown to be very useful in discerning between 6- and 7-substituted pteridines. Additionally, the 13C n.m.r. spectra of several covalent amination products, i.e. the 3,4-dihydro-4- amino- and the 5,6,7,8-tetrahydro-6,7-diaminopteridine derivatives, formed by dissolving the appropriate pteridine in liquid ammonia, have been recorded. The 13C n.m.r. spectra of the corresponding covalent hydrates are also reported. |
| |
Keywords: | |
|
|