Synergistic Effect of Squaric Acid in Bromine-Catalyzed Deoxygenation of Sulfonyl Derivatives: Mechanistic Investigations and Synthetic Applications in Electrophilic (Fluoroalkyl)sulfenylation
作者:Haonan Xiang、Jie Liu、Jieping Wang、Lvqi Jiang、Wenbin Yi
DOI:10.1021/acs.orglett.1c03813
日期:2022.1.14
A method for electrophilic (fluoroalkyl)sulfenylation of nucleophiles by collaborative CTAB- and squaric acid-promoted deoxygenation of sulfonyl derivatives is reported. Mechanistic studies indicate that squaricacid dramatically decreased the energy barrier in the first step of deoxygenation. The mild deoxygenation process enables the reduction of a wide range of functionalized sulfonyl chlorides
A bioinspired clickable selenylation reaction of indole has been developed by using benzoselenazole as selenylation reagent under nonmetallic B(C6F5)3 catalysis. The practical application of the reaction has been well demonstrated in on-DNA and on-microplate parallel synthesis of indole-selenides.
以苯并硒唑为硒化试剂,在非金属 B(C 6 F 5 ) 3催化下,开发了一种仿生可点击的吲哚可点击硒化反应。该反应的实际应用已在吲哚-硒化物的 DNA 上和微孔板上平行合成中得到很好的证明。
structural diversity to entrust their powerful potential has emerged as an important endeavor in basic research, but it remains extremely limited and highly challenging. Here, we realize either racemic or asymmetricsynthesis toward a class of organo-Se species, namely benzothiaselenazole-1-oxides (BTSAs), and reveal its diversified applications. For example, we identified that BTSAs can be recognized as the
Described herein are pet food compositions comprising: a beta glucan; and a pentacyclic triterpene; wherein the weight ratio of the beta glucan to the pentacyclic triterpene, is about 1:1. Methods of making and using these compositions are also described.