A new series of chiral catalysts for the enantioselective borane reduction of ketones
β Scribed by Zong-Xuan Shen; Ya-Wen Zhang; Jun Lu; Xue-Nong Xu; Cheng-Rong Lu
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 282 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0256-7660
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β¦ Synopsis
A new serica of 1,3,2-ox&rolidine catalysts sukituted in pmition 4 by the (CHa)sC(CHa), group (n=2,3,4, 5) were ryntheuized and applied to the borane reduction of prochired ketones. The relationship between catalyst structure and enantioselectivity wan d i s c d .
Keywordr,
Oxazaborolidine, enantioselective borane reduction, enmtioeelectivity.
π SIMILAR VOLUMES
The condensation of o-(diphenylphosphino)benzaldehyde and various chiral diamine gives a series of diimino-diphosphine tetradentate ligands, which are reduced with excess NaBH4 in refluxing ethanol to afford the corresponding diaminodiphosphine ligands in good yield. The reactivity of these ligands