Lithium Methylborohydride. A New Stereoselective Reducing Agent for Reduction of Cyclic Ketones

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• At the present time, the reason for the improvement over other similar hydride reagents such as NaBH4 and LiBH4 is unclear since the addition of alkyl groups generally increases the steric bulk of the reagent which leads to more axial alcohol. Further work on this subject is in progress.
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• This work was financially supported by a grant from the Korea Science and Engineering Foundation.
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