在 EtOH-H 2 O 存在下腈与 P 2 Se 5 的反应得到伯硒代羧酸酰胺。这些化合物与 α-卤代酮的环化得到了多种功能化的 1,3-硒唑。使用 P 2 Se 5 还可以方便地合成硒代羧酸二酰胺,该二酰胺被转化为双(硒唑-2-基)烷烃(“双硒唑”)。开发了一种合成硒脲的实用方法。这种有用的小结构单元成功地应用于伯2-氨基-1,3-硒唑的合成。
Aliphatic and aromaticprimaryselenoamides 2 were isolated by the reaction of the corresponding aliphatic and aromatic nitriles with potassium 4-methylselenobenzoate in the presence of BF3·Et2O in moderate from high yields.
A Convenient Synthesis of Selenocarboxamides from Nitriles
作者:Rafal Kamiñski、Richard S. Glass、Aleksandra Skowroñska
DOI:10.1055/s-2001-15232
日期:——
Aromatic and aliphatic nitriles can be conveniently converted into the corresponding selenocarboxamides with monoselenophosphate in aqueous alcohol in 50-94 % yield.
Synthesis utilizing reducing ability of carbon monoxide. A new method for synthesis of selenocarboxamides: reaction of nitriles with selenium, carbon monoxide, and water