Glycosyl sulfones are important intermediates in the synthesis of various sugar derivatives. However, their 1,2-cis-isomers have not been extensively studied because of lower availability. Herein, we report the highly stereoselective synthesis of heteroaryl-substituted 1,2-cis-glycosyl sulfones via glycosylation of heteroarylthiols and subsequent oxidation by magnesium monoperphthalate. One-pot Julia olefination using these 1,2-cis-glycosyl sulfones was also studied. It furnished thermodynamically less stable (E)-exo-glycals with E/Z selectivity of up to 91 : 9.
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Jiangxi Normal Univ, Dept Chem, Nanchang 330022, Peoples R China
Jiangxi Inst Anal & Testing, Nanchang 330022, Peoples R ChinaJiangxi Normal Univ, Dept Chem, Nanchang 330022, Peoples R China
Chen, Guiqin
Yu, Yan
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Jiangxi Normal Univ, Dept Chem, Nanchang 330022, Peoples R ChinaJiangxi Normal Univ, Dept Chem, Nanchang 330022, Peoples R China
Yu, Yan
Cai, Mingzhong
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Jiangxi Normal Univ, Dept Chem, Nanchang 330022, Peoples R ChinaJiangxi Normal Univ, Dept Chem, Nanchang 330022, Peoples R China