苯酚衍生物由可带有多种取代基的非芳香环化合物制备。芳香分子是许多药物、电子材料和日用塑料的关键成分。这些分子的效用直接反映了芳环上取代基的身份和模式。在这里,我们报告了一种钯 (II) 催化剂体系,结合了非常规的邻二甲氨基吡啶配体,用于将取代的环己酮转化为相应的酚类。该反应通过六元环的两个饱和碳-碳键的连续脱氢进行,并使用分子氧作为氢受体。
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.
In accordance with aspects of the invention methods of using rhodium hydroquinone catalysts for the conjugate addition of boronic acids are disclosed.
根据发明的某些方面,公开了使用铑对苯二酚催化剂进行硼酸偶联加成的方法。
Rhodium quinonoid catalysts
申请人:Sweigart A. Dwight
公开号:US20070117981A1
公开(公告)日:2007-05-24
In accordance with one aspect of the invention a rhodium quinonoid catalyst is disclosed.
根据发明的某一方面,公开了一种铑醌类催化剂。
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