期刊
CHEMICAL COMMUNICATIONS
卷 49, 期 43, 页码 4893-4895出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3cc41556b
关键词
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资金
- American Chemical Society
- National Science Foundation [NSF-CRIF 0116066]
- Rutgers University
The first planar chiral ferrocenylborenium species (pR)-3(+) is obtained in the enantiopure form by halide abstraction from the corresponding chloroborane adduct (pR)-2 using Krossing's salt. Competition experiments suggest that the Lewis acidity of (pR)-3(+) is higher than that of B(C6F5)(3) towards anions and slightly lower towards neutral Lewis bases. The ferrocenylborenium species (pR)-3(+) is examined as a catalyst for the stereoselective hydrosilylation of ketones.
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