Sulfur-Assisted and 1,8-Diazabicyclo[5.4.0]undec-7-ene (DBU)-Catalyzed Cyclization of 2-Alkynylanilines for the Metal-Free Synthesis of Indole Derivatives
作者:Hongwei Zhou、Da Zhu、Yanpeng Xing、Huafeng Huang
DOI:10.1002/adsc.201000280
日期:2010.9.10
sulfur‐assisted and 1,8‐diazabicyclo[5.4.0]undec‐7‐ene (DBU)‐catalyzed cyclization of 2‐alkynylanilines for the metal‐free synthesis of indole derivatives is reported. As a result of the metal‐free process, the ready availability of the starting materials and the simple and convenient operation, the type of reaction presented here has potential utility in organic synthesis. A 10‐gram scale preparation may
据报道,在无金属合成吲哚衍生物的条件下,有硫辅助的1,8-二氮杂双环[5.4.0]十一碳-7-烯(DBU)催化的2-炔基苯胺的环化反应。由于采用了无金属工艺,易于获得的起始原料以及简单便捷的操作,因此此处介绍的反应类型在有机合成中具有潜在的实用性。10克规模的制剂可能证明其可用于环境友好的吲哚衍生物合成中。