Reaction of nitriles under acidic conditions. Part<b>VII</b>. Study on the reaction of<i>o</i>-aminonitriles with cyanamides to synthesize 2,4-diaminothieno[2,3-<i>d</i>]pyrimidines
作者:C. J. Shishoo、K. S. Jain
DOI:10.1002/jhet.5570300226
日期:1993.3
The reaction of N-arylcyanamides with thiophene o-aminonitriles under the influence of dry hydrogen chloride gas yields a mixture of two products. The major product has been identified as 2-amino-3-aryl-4-iminothieno[2,3-d]pyrimidine and the minor as 2-amino-3-arylthieno[2,3-H]pyrimidin-4(3H)-one.
N-芳基氰酰胺与噻吩邻氨基腈的反应在干燥的氯化氢气体的影响下产生两种产物的混合物。主要产物已被鉴定为2-氨基-3-芳基-4-亚氨基not [2,3- d ]嘧啶,次要产物为2-氨基-3-芳基噻吩并[2,3 - H ]嘧啶-4(3 H)-一。