An electrochemical protocol for the construction of substituted isoindolinones via reduction/amidation of 2-carboxybenzaldehydes and amines has been realized. Under metal-free and external-reductant-free electrolytic conditions, the reaction achieves the cascade formation of intermolecular C–N bonds and provides a series of isoindolinones in moderate to good yields. The deuterium-labeling experiment
Palladium-Catalyzed Cross-Coupling Reactions of Potassium N-Methyltrifluoroborate Isoindolin-1-one with Aryl and Heteroaryl Chlorides
作者:Rashid N. Nadaf、Dave G. Seapy
DOI:10.1080/00397911.2014.884591
日期:2014.7.18
Abstract Potassium N-methyltrifluoroborate isoindolin-1-one was synthesized and used in Suzuki–Miyaura palladium-catalyzed cross-coupling reactions with aryl and heteroaryl chlorides to prepare 29 examples of substituted N-benzyl isoindolin-1-ones. The new approach benefits from mild reaction conditions that tolerate a variety of functional groups. In addition, because of the large number of commercially
Site-Selective Carbonylative Synthesis of Structurally Diverse Lactams from Heterocyclic Amines with TFBen as the CO Source
作者:Jun Ying、Qian Gao、Xiao-Feng Wu
DOI:10.1021/acs.joc.9b02114
日期:2019.11.1
A palladium-catalyzed site-selectiveC-Hcarbonylation of heterocyclic amines for the synthesis of lactam motifs has been developed. The reaction of 3-thiophene methylamines, 2-thiophene methylamines, and tryptamines with benzene-1,3,5-triyl triformate (TFBen) as the CO source provides a series of structurally diverse lactams in moderate to high yields with excellent regioselectivities.