The 1,5-diketone, diphenacylaniline, yielded an enamine under Gewald conditions, while another 1,5-diketone, diphenacyl sulfide, resulted in thioamide formation under identical conditions. 2-Amino-4-(3-oxo-1,3-diphenylpropyl)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carbonitrile was obtained from the 1,5-diketone 2-(3-oxo-1,3-diphenylpropyl)-1-cyclohexanone under the same conditions.
在格瓦尔德条件下,1,5-二酮--二苯基
苯胺生成了烯胺,而另一种 1,5- 二酮--二苯基
硫醚在相同条件下生成了
硫代酰胺。在相同的条件下,2-(3-氧代-1,3-二苯基丙基)-4,5,6,7-四氢苯并[b]
噻吩-3-甲腈从 1,5-二酮 2-(3-氧代-1,3-二苯基丙基)-1-
环己酮中得到。