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.
Pd-Catalyzed Assembly of Fluoren-9-ones by Merging of C–H Activation and Difluorocarbene Transfer
作者:Xiaobing Liu、Heyun Sheng、Yao Zhou、Qiuling Song
DOI:10.1021/acs.orglett.1c00467
日期:2021.4.2
Cross Dehydrogenative Coupling via Base-Promoted Homolytic Aromatic Substitution (BHAS): Synthesis of Fluorenones and Xanthones
作者:Sebastian Wertz、Dirk Leifert、Armido Studer
DOI:10.1021/ol4000857
日期:2013.2.15
Cross dehydrogenative coupling reactions occurring via base-promoted homolytic aromatic substitutions (BHASs) are reported. Fluorenones and xanthones are readily prepared via CDC starting with readily available ortho-formyl biphenyls and ortho-formyl biphenylethers, respectively. The commercially available and cheap tBuOOH is used as an oxidant. Initiation of the radical chain reaction is best achieved