Synthesis of Fluoren‐9‐ones via Pd‐Catalyzed Annulation of 2<i>‐</i>Iodobiphenyls with Vinylene Carbonate
作者:Wenguang Li、Yongqi Yu、Jie Yang、Kaifang Fu、Xu Zhang、Shukui Shi、Ting Li
DOI:10.1002/asia.202301040
日期:2024.2.16
A palladium-catalyzed reaction for intermolecular selective C−H cyclocarbonylation of 2-iodobiphenyls is reported, in which the vinylenecarbonate acts as a carbon monoxide transfer agent to enable the annulation reaction.
Novel procedures for the [Pd]/[Ag]/TFA system catalyzed cascade reactions of nitrile directed remote C-H and dual C-H bond activation with insertion of nitrile were developed, which afforded variously polysubstituted fluorenones in moderate to good yields with tolerance of a wide variety of substrates.
Catalytic transformation of benzoic anhydrides into fluorenones and biphenyls
作者:Jochanan Blum、David Milstein、Yoel Sasson
DOI:10.1021/jo00835a010
日期:1970.10
<i>N</i>-Hydroxyphthalimide-Mediated Electrochemical Denitrogenation of Aroylhydrazides to Generate Acyl Radicals and Their Applications in the Syntheses of Fluorenones