Environmentally benign indole-catalyzed position-selective halogenation of thioarenes and other aromatics
作者:Yao Shi、Zhihai Ke、Ying-Yeung Yeung
DOI:10.1039/c8gc02415d
日期:——
Halogenated aromatic compounds are the cores of many pharmaceutical, agricultural and chemical products but they are commonly prepared using electrophilic halogenation reactions in non-green chlorinated solvents under harsh conditions. A separate problem happens in the aromatichalogenation of thioarenes because they readily undergo oxidative side-reactions. Herein we report an environmentally benign
Bis-selenonium Cations as Bidentate Chalcogen Bond Donors in Catalysis
作者:Xinxin He、Xinyan Wang、Ying-Lung Steve Tse、Zhihai Ke、Ying-Yeung Yeung
DOI:10.1021/acscatal.1c03622
日期:2021.10.15
Lewisacids are frequently employed in catalysis but they often suffer from high moisture sensitivity. In many reactions, catalysts are deactivated because of the problem that strong Lewisacids also bond to the products. In this research, hydrolytically stable bidentateLewisacid catalysts derived from selenonium dicationic centers have been developed. The bis-selenonium catalysts are employed in
Applications of Selenonium Cations as Lewis Acids in Organocatalytic Reactions
作者:Xinxin He、Xinyan Wang、Ying-Lung Steve Tse、Zhihai Ke、Ying-Yeung Yeung
DOI:10.1002/anie.201806965
日期:2018.9.24
The use of trisubstituted selenonium salts as organic Lewis acids in electrophilic halogenation and aldol‐type reactions has been developed. The substrate scope is broad. The reaction conditions are mild and compatible with various functionalities. This study opens a new avenue for the development of nonmetallic Lewis acid catalysis.
Compounds for use in the treatment of human immunodeficiency virus (HIV) infection are disclosed. The compounds have the following Formula (I): including stereoisomers and pharmaceutically acceptable salts thereof, wherein D, V, and R3 are as defined herein. Methods associated with preparation and use of such compounds, as well as pharmaceutical compositions comprising such compounds, are also disclosed.