By using Hf(OTf)₄ as the catalyst, a series of 2,3-unsaturated-Se-glucosides have been synthesized for the first time from tri-O-acetyl-d-glucal, 2,4,6-tri-O-benzyl-d-glucal, 3,4-di-O-acetyl-l-rhamnal and ((2R,3S)-3-acetoxy-2,3-dihydrofuran-2-yl) methyl acetate with PhSeH or alkyl(aryl) hydroselenides as the nucleophile in good yield and high anomeric selectivity.

中文翻译：

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转移反应：以烷基（芳基）氢硒化物为亲核试剂，以Hf（OTf）₄为催化剂，首次合成2,3-不饱和硒代糖苷

通过使用HF（OTF）₄作为催化剂，一系列2,3- unsaturated-硒-glucosides已经合成首次从三ö乙酰基d -glucal，2,4,6-三- ö苄基d -glucal，3,4-二- ö乙酰基升-rhamnal和（（2 - [R，3小号）-3-乙酰氧基-2,3-二氢呋喃-2-基）甲基乙酸酯与PhSeH或烷基（芳基）氢硒化物作为亲核试剂，收率高，端基异构体选择性高。