【摘 要】
：
In this presentation, we would like to discuss a conceptually novel oxonia-Cope rearrangement to construct 1,5-pentendiols and 2-methyl-1,5-pentendiols[1] in a
【机 构】
：
CASKeyLaboratoryofSyntheticChemistryofNaturalSubstances,ShanghaiInstituteofOrganicChemistry,ChineseA
【出 处】
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The 24th International Society of Heterocyclic Chemistry Con
论文部分内容阅读
In this presentation, we would like to discuss a conceptually novel oxonia-Cope rearrangement to construct 1,5-pentendiols and 2-methyl-1,5-pentendiols[1] in a stereochemically controlled manner.The products could be readily converted to 1,3,5-and 1,2,3,5-stereotfiads in numerous polyketide antibiotics.[2] Moreover, the intrinsic silyl group attenuates the late tedious differentiation of skipped polyols (Scheme 1).[3] The origin of stereospecific chiral transfer might be attributed to the chair-like anti conformation of oxonium ion intermediate during the key rearrangement and retarding the reaction of other diastereomers generated fiom the allylboration step.
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