作者:Oonishi, Yoshihiro、Ueda, Yukiko、Sato, Yoshihiro
DOI:10.1002/adsc.202400249
日期:——
The cascade reaction of ynamides with propargyl thiols by Au(I) catalysis involving regioselective hydrothiolation, thio‐Claisen rearrangement, and cycloisomerization to generate 2‐aminothiophenes in a one‐pot manner is described. In this reaction, the selection of reaction temperature is crucial, with the initial step, namely hydrothiolation, conducted at a low temperature (40°C), followed by the
描述了在 Au(I) 催化下,炔酰胺与炔丙基硫醇发生级联反应,涉及区域选择性硫氢化、硫代克莱森重排和环异构化,以一锅方式生成 2-氨基噻吩。在该反应中,反应温度的选择至关重要,第一步即氢硫醇化反应在低温(40℃)下进行,随后的反应需要升高温度(>110℃)。此外,研究表明,可以从所得的 2-氨基噻吩中有效合成多取代苯胺。