【摘 要】
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An improved method for preparing enantiomerically pure 1,1’|bi|2|naphthols is described. 1,1’|bi|2|naphthol boric anhydride was generated from the reaction of
【出 处】
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Journal of Zhejiang University Science
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An improved method for preparing enantiomerically pure 1,1’|bi|2|naphthols is described. 1,1’|bi|2|naphthol boric anhydride was generated from the reaction of racemic 1,1’|bi|2|naphthol and boric anhydride. Its two diastereoisomers could be efficiently separated in THF using (L)|proline as the resolving agent. Treatment in three successive steps yielded 79% and 74% enantiomerically pure (S)| and (R)|1,1’|bi|2|naphthol respectively.
An improved method for preparing enantiomerically pure 1,1 ’ | bi | 2 | naphthols is described. 1,1’ | bi | 2 | naphthol boric anhydride was generated from the reaction of Its two diastereoisomers could be efficiently separated in THF using (L) | proline as the resolving agent. Treatment in three successive steps yielded 79 % and 74% enantiomerically pure (S) | and (R) | 1,1 ’ | bi | 2 | naphthol respectively.
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