N-nucleophiles in the recently developed one-pot method for pyrimidine core annulation via 1H-tetrazole ring cleavage was examined. The product structures, 2,3-diamino- or hydrazino derivatives of thieno[3,2-d]pyrimidin-4(3H)-ones, thieno[2,3-d]pyrimidin-4(3H)-ones and [1]benzofuro[3,2-d]pyrimidin-4(3H)-one, were elucidated based on NMR and single crystal X-ray analysis.
在最近开发的通过1 H-
四唑环裂解进行
嘧啶核环化的一锅法中,研究了几种
肼作为N-亲核试剂的行为的区别。
噻吩并[3,2 - d ]
嘧啶-4(3 H)-,
噻吩并[2,3 - d ]
嘧啶-4(3 H)-和基于NMR和单晶X射线分析,阐明了[1]
苯并呋喃[3,2 - d ]
嘧啶-4(3 H)-one。