A convenient one-pot method for synthesis of some new oxazolo[5,4-d]pyrimidines via base catalyzed heterocyclization of 2-substituted 5-amino-4-cyano-1,3-oxazoles with various isothiocyanates is described.
Study on Oxazolopyrimidines. I. Synthesis and Spectroscopic Properties of 7-Aminooxazolo[5,4-<i>d</i>]pyrimidines
作者:Yozo Ohtsuka
DOI:10.1246/bcsj.43.187
日期:1970.1
Several 2- and 5-substituted oxazolo[5,4-d]pyrimidines have been prepared from 5-amino-4-cyanooxazole derivatives via N-ethoxymethylene intermediates in order to compare them with purine derivatives. Spectroscopic data and some chemical properties of these compounds were examined. A convenient method for the preparation of a starting material was described.