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Quantum chemical study on the mechanism of enantioselective reduction of prochiral ketones catalyzed by oxazaborolidines

✍ Scribed by Ming Li; Rugang Xie; Anmin Tian

Book ID
105644448
Publisher
SP Science China Press
Year
2001
Tongue
English
Weight
158 KB
Volume
44
Category
Article
ISSN
1674-7291

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πŸ“œ SIMILAR VOLUMES

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Quantum chemical study on enantioselective reduction of aromatic ketones catalyzed by chiral cyclic sulfur-containing oxazaborolidines. Part 2. Structures of catalyst–borane–ketone adducts
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In the present paper, the ab initio molecular orbital method is employed to study the structures of the adducts of borane and aromatic ketone to chiral cyclic sulfur-containing oxazaborolidine used as a catalyst in the enantioselective reduction of aromatic ketone. The catalyst-borane-ketone adducts

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The ab initio molecular orbital method is employed to study the structures and properties of chiral cyclic sulfur-containing oxazaborolidine, as a catalyst, and its borane adducts. All the structures are optimized completely by means of the Hartree-Fock method at 6-31g \* basis sets. The catalyst is

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The chiral cyclic sulfur-containing oxazaborolidine catalyst reacts with aromatic ketone in the presence of borane to form the catalyst-alkoxyborane adduct with a B-O-B-N four-membered ring. The ab initio molecular orbital method is employed to study the structures of the catalyst-alkoxyborane adduc

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An Optimized in situ Procedure for the Oxazaborolidine Catalyzed Enantioselective Reduction of Prochiral Ketones. -The catalyst prepared from (S)-diphenyl prolinol is found to be the best amongst several other analogues for the reduction of alkyl aryl ketones. -(PRASAD, K. R.