ZVILICHOVSKY, G.;GARBI, H.;NEMES, E., J. HETEROCYCL. CHEM., 1982, 19, N 1, 205-209
作者:ZVILICHOVSKY, G.、GARBI, H.、NEMES, E.
DOI:——
日期:——
Synthesis and properties of 7-hydroxy-8-phenylxanthine and its derivatives. Disproportionation to derivatives of 8-phenylxanthine and 6-amino-5-nitrosouracil
作者:Gury Zvilichovsky、Herzel Garbi、Eliahu Nemes
DOI:10.1002/jhet.5570190139
日期:1982.1
were synthesized by ring closure of 6-amino-5-nitrosouracil with benzaldehyde, p-methoxybenzaldehyde and p-chlorobenzaldehyde, respectively. The disproportionation of these products to the corresponding 8-phenylxanthines and 6-amino-5-nitrosouracil was studied. The dependence of the rate of the reaction on the various substituents was studied. The disproportionation reaction is inhibited by the polarophilic