Functionalization of α‐C(sp
<sup>3</sup>
)−H Bonds in Amides Using Radical Translocating Arylating Groups
作者:Niklas Radhoff、Armido Studer
DOI:10.1002/anie.202013275
日期:2021.2.15
α‐C−H arylation of N‐alkylamides using 2‐iodoarylsulfonyl radical translocating arylating (RTA) groups is reported. The method allows the construction of α‐quaternary carbon centers in amides. Various mono‐ and disubstituted RTA‐groups are applied to the arylation of primary, secondary, and tertiary α‐C(sp3)−H‐bonds. These radical transformations proceed in good to excellent yields and the cascades
The present invention, in one aspect, provides a method of inhibiting bacterial growth by contacting bacteria with an effective amount of at least one monosaccharide compound of formula (1) as described herein:
US7989422B2
申请人:——
公开号:US7989422B2
公开(公告)日:2011-08-02
Mechanochemical synthesis of aromatic sulfonamides
作者:Satenik Mkrtchyan、Viktor O. Iaroshenko
DOI:10.1039/d1cc03224k
日期:——
strategy was developed to utilise mechanical energy and accommodate primary as well as secondary aliphatic and aromatic amines to provide a new shortcut to a widerange of sulfonamides. Studies on the scope and limitations of the reaction indicated its tolerance of a vast range of functional groups and many structural patterns. The reactions were scaled up to gram quantities.
开发了一种三组分 Pd 催化的 K 2 S 2 O 5和胺与芳基溴化物或芳族羧酸的氨基磺酰化反应。开发该策略是为了利用机械能并适应伯胺和仲脂肪族和芳族胺,为各种磺胺类药物提供新的捷径。对反应范围和局限性的研究表明,它可以容忍广泛的官能团和许多结构模式。反应放大到克级。
Novel N-Dealkylation of <i>N</i>-Alkyl Sulfonamides and <i>N</i>,<i>N</i>-Dialkyl Sulfonamides with Periodic Acid Catalyzed by Chromium(III) Acetate Hydroxide
作者:Mark Trudell、Liang Xu、Suhong Zhang
DOI:10.1055/s-2004-830851
日期:——
Chromium(III) acetate hydroxide has been found to be an efficient catalyst for N-dealkylation of N-alkyl sulfonamides and N,N-dialkyl sulfonamides to furnish sulfonamides in good to excellent yields with periodic acid in acetonitrile at room temperature.