Carbene Bridging C-H Activation: Facile Isocoumarin Synthesis Through Palladium-Catalyzed Reaction of 2-Pseudohalobenzaldehydes with Aryl Diazoesters
作者:Chao Yan、Yinghua Yu、Bo Peng、Xueliang Huang
DOI:10.1002/ejoc.201901738
日期:2020.2.14
A strategy based on carbene bridging C–H activation is described. The bridging arm is generated via migratory insertion of a palladium carbene intermediate. Through this distinct pathway, a variety of isocoumarins could be prepared in a modular manner.
Direct and selective synthesis of 3-arylphthalides via nickel-catalyzed aryl addition/intramolecular esterification
作者:Qing Qiang、Feipeng Liu、Zi-Qiang Rong
DOI:10.1016/j.tet.2021.132162
日期:2021.6
Herein we report a nickel-catalyzed aryl addition/intramolecular esterification in a cascade fashion. Under the combination of commercially available nickel precursor and tridentate ligand, the one pot protocol offers a direct, simple and regioselective approach to access 3-aryl phthalide derivatives from two readily available substrates with good efficiency, broad scope as well as satisfactory functional
Compounds with a pyridoisoquinolinone core often appear as members of the protoberberine alkaloid family. Traditional methods to construct this framework normally rely on manipulation of sophisticated reactants. Herein, a palladium-catalyzed reaction of readily available pyridotriazoles and o-bromo/pseudohalo benzaldehydes is described, which provides a modular approach to pyridoisoquinolinone derivatives
Hsp90 C-terminal inhibitors and pharmaceutical compositions containing such compounds are provided. The compounds of the disclosure are useful for the treatment and/or prevention of neurodegenerative disorders such as diabetic peripheral neuropathy.
Hsp90 C-terminal inhibitors and pharmaceutical compositions containing such compounds are provided. The compounds of the disclosure are useful for the treatment and/or prevention of neurodegenerative disorders such as diabetic peripheral neuropathy.