期刊
ADVANCED SYNTHESIS & CATALYSIS
卷 351, 期 1-2, 页码 271-275出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adsc.200800646
关键词
cobalt; cycloaddition; dienes; manganese; N-heterocyclic carbenes; polycycles
资金
- CNRS
- MRES
- IUF
Enediynes undergo intramolecular [2 + 2 + 2] cycloaddition in the presence of cobalt(II) iodide (CoI2), manganese and an N-heterocyclic carbene (IPr) generated in situ from the corresponding imidazolium salt and butyllithium (BuLi). Polycyclic cyclohexadienes are obtained selectively. This new method represents an interesting alternative to those employing air-sensitive cyclopentadienylcobalt [CpCoL2 (L=CO, C2H4)] catalysts. Moreover, the N-heterocyclic carbene can be used catalytically, which is a significant improvement compared to the corresponding phosphine-based system which requires an excess of ligand.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据