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.
REAGENT FOR ORGANIC SYNTHESIS REACTION CONTAINING ORGANIC TRIOL BORATE SALT
申请人:Miyaura Norio
公开号:US20100087646A1
公开(公告)日:2010-04-08
[Problem] To provide an organoboron compound-containing reagent for organic synthesis reactions which undergoes no trimerization with dehydration, does not necessitate activation with a base, and is stable and highly active.
[Means for Solving Problems] The reagent for organic synthesis reactions contains an organic triol borate salt represented by any of the general formulae (I) to (III) and general formula (XVI): (wherein R
1
represents alkyl, alkenyl, etc.; R
2
represents optionally substituted alkyl, alkenyl, alkynyl, etc. or represents hydrogen; m
+
represents an alkaline metal ion, phosphonium ion, or given ammonium ion; M
2+
represents an alkaline earth metal; X represents halogen or alkoxide; Y represents an alkali metal ion, etc.; A represents optionally substituted methylene; and n represents an integer).
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