ChemInform Abstract: Oxocarbenium Ion Cy
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Noshena Khan; Haiyun Xiao; Bo Zhang; Xuhong Cheng; David R. Mootoo
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Article
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2010
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John Wiley and Sons
β 31 KB
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Oxocarbenium Ion Cyclizations under Non-Acidic Conditions: Synthesis of Tetrahydropyran Analogues of the Pseudomonic Acids. -C 5 -Alkylated 1,2-O-isopropylidene furanosides such as (I) undergo a completely stereoselective reaction with iodonium ions to lead to tetrahydropyran subunits of pseudomonic