Carbohydrates as chiral auxiliaries in e
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Wei Wang; Yuwu Zhong; Guoqiang Lin
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Article
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2003
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Elsevier Science
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French
โ 526 KB
Using several easily accessed and inexpensive chiral auxiliaries derived from carbohydrates, all four stereoisomers of the optically active a,g-substituted g-butyrolactones were obtained respectively in high enantiomeric purities (up to 96% ee for trans and up to >99% ee for cis) by the SmI 2 -induc