F. Sauter, W. Deinhammer
May 1, 1974
Citations
0
Influential Citations
8
Citations
Journal
Monatshefte für Chemie / Chemical Monthly
Abstract
Reaction of 2-methylthio-thieno[2.3-d]pyrimidin-4(3H)-ones with heterocyclic secondary amines, ethanolamine and hydrazine, resp., gave the corresponding derivatives with a basic substituent in position 2.Cyclization of the hydrazino compounds with formic acid gave derivatives of thieno[2.3-d]-1.2.4-triazolo[4.3-a]pyrimidine and [1]benzothieno[2.3-d]-1.2.4-triazolo[4.3-a]pyrimidine, two new heterocyclic systems.