Scope and selectivity in palladium-catalyzed directed C–H bond halogenation reactions
作者:Dipannita Kalyani、Allison R. Dick、Waseem Q. Anani、Melanie S. Sanford
DOI:10.1016/j.tet.2006.06.075
日期:2006.12
Palladium-catalyzed ligand directed C–H activation/halogenation reactions have been extensively explored. Both the nature of the directing group and the substitution pattern on the arene ring of the substrate lead to different reactivity profiles, and often different and complementary products, in the presence and absence of the catalyst.
Novel 2-Amino-Imidazole-4-One Compounds and Their Use in the Manufacture of a Medicament to Be Used in the Treatment of Cognitive Impairment, Alzheimer's Disease, Neurodegeneration and Dementia
申请人:Berg Stefan
公开号:US20090233930A9
公开(公告)日:2009-09-17
This invention relates to novel compounds having the structural formula I below: and to their pharmaceutically acceptable salt, compositions and methods of use. These novel compounds provide a treatment or prophylaxis of cognitive impairment, Alzheimer Disease, neurodegeneration and dementia.
Site- and Enantioselective Manganese-Catalyzed Benzylic C–H Azidation of Indolines
作者:Min Cao、Hongliang Wang、Yingang Ma、Chen-Ho Tung、Lei Liu
DOI:10.1021/jacs.2c07089
日期:2022.8.24
nitrogen-based functional groups and diverse bioactive molecules at the C3 position of indoline frameworks through post-azidation manipulations. Gram-scale synthesis was also demonstrated, further highlighting the synthetic potential of the method. Mechanistic studies by combined experiments and computations elucidated the reaction mechanism and origins of stereoselectivity.