Pd-Catalyzed C−H Functionalizations of O-Methyl Oximes with Arylboronic Acids
摘要:
Useful methods have been developed to construct ortho-arylated aryl aldoximes, aryl ketoximes, and fluorenones via Pd(II)-catalyzed direct C-H arylation by using arylboronic acids as arylating reagents based on the analysis of the pathways of direct functionalization of aryl aldoximes.
Combining Transition Metal Catalysis with Radical Chemistry: Dramatic Acceleration of Palladium-Catalyzed CH Arylation with Diaryliodonium Salts
作者:Sharon R. Neufeldt、Melanie S. Sanford
DOI:10.1002/adsc.201200738
日期:2012.12.14
This paper describes a photoredox palladium/iridium-catalyzed C-H arylation with diaryliodonium reagents. Details of the reaction optimization, substrate scope, and mechanism are presented along with a comparison to a related method in which aryldiazonium salts are used in place of diaryliodonium reagents. The unprecedentedly mild reaction conditions (25 masculineC in methanol), the requirement for