Palladium-catalyzed direct β-arylation of ketones with diaryliodonium salts: a stoichiometric heavy metal-free and user-friendly approach
作者:Zhongxing Huang、Quynh P. Sam、Guangbin Dong
DOI:10.1039/c5sc01636c
日期:——
A user-friendly protocol for the Pd-catalyzed direct [small beta]-arylation of ketones is described, which avoids the use of stoichiometric heavy metals.
9-(Diphenylphosphino)anthracene-based phosphapalladacycle catalyzed conjugate addition of arylboronic acids to electron-deficient alkenes
作者:Minori Shimizu、Tetsuya Yamamoto
DOI:10.1016/j.tetlet.2020.152257
日期:2020.8
9-(Diphenylphosphino)anthracene-based phosphapalladacycle catalyzed conjugateaddition of arylboronic acids to electron-deficient alkenes such asα,β-unsaturated ketones, esters, nitrile and nitroalkenes gave corresponding β-arylated alkanes in good yields and achieved TON up to 700.
Catalytic Direct β-Arylation of Simple Ketones with Aryl Iodides
作者:Zhongxing Huang、Guangbin Dong
DOI:10.1021/ja410389a
日期:2013.11.27
Herein we report a direct β-arylation of simple ketones with widely available aryliodides, combining palladium-catalyzed ketone oxidation, aryl-halide activation, and conjugate addition through a single catalytic cycle. Simple cyclic ketones with different ring-sizes, as well as acyclic ketones, can be directly arylated at the β-position with complete site-selectivity and excellent functional group
Palladium-catalyzed redox cascade for direct β-arylation of ketones
作者:Zhongxing Huang、Guangbin Dong
DOI:10.1016/j.tet.2018.03.017
日期:2018.6
design and development of two palladium-catalyzed redox cascade methods that enable direct β-arylation of ketones. Palladium-catalyzed ketone dehydrogenation, aryl-X bond activation and conjugate addition were merged into a redox-neutral catalytic cycle. Non-metal-based aryl electrophiles were used as both the oxidant and the aryl source. The β-arylation with aryliodides was achieved site-selectively
Palladium-Catalyzed Direct β-C−H Arylation of Ketones with Arylboronic Acids in Water
作者:Xiaoyun Hu、Xiaobo Yang、Xi-Jie Dai、Chao-Jun Li
DOI:10.1002/adsc.201700277
日期:2017.7.17
A palladium‐catalyzed direct β‐C−H arylation of ketones was developed under mild conditions in water, featuring commercially available arylboronic acids as nucleophilic aryl sources and o‐iodoxybenzoic acid as the oxidant. The method provides a concise route to access β‐arylated ketones. Preliminary studies indicated that direct asymmetric β‐C−H arylation of ketones could be achieved by this strategy