期刊
ORGANOMETALLICS
卷 29, 期 15, 页码 3362-3367出版社
AMER CHEMICAL SOC
DOI: 10.1021/om100323q
关键词
-
资金
- Heidelberg University
- state of Baden-Wurttemberg
- BASF
The important enantioselective hydroformylation catalyst [(R,S)-Binaphos](CO)(2)RhH has been reexamained by low-temperature NMR spectroscopy Both H-1 and P-31 NMR spectroscopy at -90 degrees C allow direct observation of a mixture or two apical-equatorial chelates The major chelate, 1(eq,ap), was shown to have an equatorial phosphine and an apical phosphite. Its structure was unambiguously assigned using low-temperature P-31 NMR spectroscopy with selective decoupling of aromatic hydrogens but not of the rhodium hydride, which showed a 225 Hz trans phosphite to RhH coupling The equilibrium constant for [1(eq,aq)]/[1(ap,eq)] was determined over a wide temperature range
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