Reactions of Phosphonium Ylides with S<sub>8</sub>or Se in the Presence of Amines. Formation of Thioaldehydes or Selenoaldehydes
作者:Kentaro Okuma、Yasuo Komiya、Hiroshi Ohta
DOI:10.1246/cl.1988.1145
日期:1988.7.5
The reaction of phosphonium ylides with elemental sulfur gave thioaldehydes which were successfully changed to corresponding thioamides when treated with secondary amines. On the other hand, the reaction of selenoaldehydes with secondary amines afforded bis(dialkylamino)methanes in good yields.
The reaction of phosphonium ylides with elemental sulfur gave thioaldehydes, which changed to the corresponding thioamides in good yields when treated with amines. When thioaldehydes containing α-hydrogens were treated with secondary amines, the corresponding enamines or reduction products were obtained.