{"title":"Ru-Diphosphine catalyzed asymmetric hydrogenation of unprotected β-C-glycosidic ketones","authors":"Limin Xu, Yuxuan Zhang, Yan Lu, Zhaoguo Zhang","doi":"10.1039/d5qo01085c","DOIUrl":null,"url":null,"abstract":"Stereoselective reduction of β-<em>C</em>-glycosidic ketones is an effective method for the synthesis of carbohydrate derivatives. We herein report that β-<em>C</em>-glycosidic ketones, not generally considered as functionalized ketones, are unexpectedly hydrogenated by Ru-diphosphine catalysts with excellent stereoselectivity (up to >99 : 1 dr). Further investigation into the effect of the chiral hydroxyl groups during the reaction has also been conducted. This reaction has been performed on a multi-gram scale, providing a novel approach for the construction of chiral centers in carbohydrate derivatives.","PeriodicalId":97,"journal":{"name":"Organic Chemistry Frontiers","volume":"94 1","pages":""},"PeriodicalIF":4.7000,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Organic Chemistry Frontiers","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1039/d5qo01085c","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, ORGANIC","Score":null,"Total":0}
引用次数: 0
Abstract
Stereoselective reduction of β-C-glycosidic ketones is an effective method for the synthesis of carbohydrate derivatives. We herein report that β-C-glycosidic ketones, not generally considered as functionalized ketones, are unexpectedly hydrogenated by Ru-diphosphine catalysts with excellent stereoselectivity (up to >99 : 1 dr). Further investigation into the effect of the chiral hydroxyl groups during the reaction has also been conducted. This reaction has been performed on a multi-gram scale, providing a novel approach for the construction of chiral centers in carbohydrate derivatives.
立体选择还原β- c -糖苷酮是合成碳水化合物衍生物的有效方法。我们在此报道,通常不被认为是功能化酮的β- c -糖苷酮,意外地被具有优异立体选择性(高达>;99: 1 dr)的ru -二膦催化剂氢化。对手性羟基在反应中的作用也进行了进一步的研究。该反应在多克尺度上进行,为碳水化合物衍生物的手性中心的构建提供了一种新的方法。
期刊介绍:
Organic Chemistry Frontiers is an esteemed journal that publishes high-quality research across the field of organic chemistry. It places a significant emphasis on studies that contribute substantially to the field by introducing new or significantly improved protocols and methodologies. The journal covers a wide array of topics which include, but are not limited to, organic synthesis, the development of synthetic methodologies, catalysis, natural products, functional organic materials, supramolecular and macromolecular chemistry, as well as physical and computational organic chemistry.