Influences of Electronic Effects and Anions on the Enantioselectivity in the Oxazaborolidine-Catalyzed Asymmetric Borane Reduction of Ketones
✍ Scribed by Xu, ; Wei, ; Zhang,
- Book ID
- 121730726
- Publisher
- American Chemical Society
- Year
- 2004
- Tongue
- English
- Weight
- 112 KB
- Volume
- 69
- Category
- Article
- ISSN
- 0022-3263
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## Abstract The effect of borane source on enantioselectivity in the enantiopure oxazaborolidine‐catalyzed asymmetric borane reduction of ketones has been investigated by using (__S__)‐3,1,2‐oxazaborobicyclo[3.3.0]octane and (__S__)‐7,3,1,2‐thiaxazaborobicyclo[3.3.0]octane as catalysts. The results
## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v
## Abstract The secondary reduction in the direct and oxazaborolidine‐catalyzed asymmetric borane reduction of ketones was investigated by the use of GC/MS tracing titration and control experiments. The results indicate that the secondary reduction affects the enantioselectivity only in noncoordina