The synthesis of hexahydrooxoepithiopyridinedicarboximides by the reaction of thioamides with<i>N</i>-substituted maleimides
作者:Toshio Takido、Sachiko Tamura、Kenji Sato、Haruo Kamijo、Toshikatsu Nakazawa、Manabu Seno、Tadashi Hata
DOI:10.1002/jhet.5570350229
日期:1998.3
The synthesis of hexahydrooxoepithiopyridinedicarboxyimide (5: X2 = N-Ph) by the reaction of thioamides 1 with N-substitutedmaleimide (2a) was examined. The reaction of primary thioamides, such as thiobenzamide and p-toluthioamide with N-phenylmaleimide gives compounds 5 together with corresponding 4-hydroxy-1,3-thiazoles 4. However, a similar reaction of secondary thioamides, such as N-methylthioacetamide