Catalyst-Controlled Highly Selective Coupling and Oxygenation of Olefins: A Direct Approach to Alcohols, Ketones, and Diketones
作者:Yijin Su、Xiang Sun、Guolin Wu、Ning Jiao
DOI:10.1002/anie.201303917
日期:2013.9.9
Oxygen? That's radical! A method for the direct synthesis of substituted alcohols, ketones, and diketones through a catalyst‐controlled highly chemoselective coupling and oxygenation of olefins has been developed. The method is simple and practical, can be switched by the selection of different catalysts, and employs molecular oxygen as both an oxidant and a reagent.
A concerted metallophotoredox catalysis has been realized for the efficient decarboxylative functionalization of α,β-unsaturated carboxylic acids with aryl iodides in the presence of perylene bisimide dye to afford 1,2-diketones.
Mild Mn(OAc)<sub>3</sub>-Mediated Aerobic Oxidative Decarboxylative Coupling of Arylboronic Acids and Arylpropiolic Acids: Direct Access to Diaryl 1,2-Diketones
作者:Wen-Xin Lv、Yao-Fu Zeng、Shang-Shi Zhang、Qingjiang Li、Honggen Wang
DOI:10.1021/acs.orglett.5b01265
日期:2015.6.19
A simple and efficient method for the synthesis of diaryl 1,2-diketones has been developed. The reaction represents the first example of diaryl 1,2-diketones that are synthesized directly from arylboronic acids and arylpropiolicacids by a radical pathway in moderate to good yields. This reaction proceeds under mild reaction conditions and with good tolerance of a variety of functional groups. Preliminary
Ruthenium-Catalyzed Oxidation of Alkenes at Room Temperature: A Practical and Concise Approach to α-Diketones
作者:Shulin Chen、Zhaojun Liu、Erbo Shi、Long Chen、Wei Wei、Hong Li、Yannan Cheng、Xiaobing Wan
DOI:10.1021/ol200716d
日期:2011.5.6
The catalytic oxidation of alkenes to α-diketones is unprecedented. A newoxidation of alkenes, catalyzed by a ruthenium complex, which allows an efficient route to α-diketones using TBHP as an oxidant is described. This methodology is highlyfunctional group tolerant, is practically convenient, requires no additional ligand, and operates under mild conditions with short reaction times. Based upon
Copper-Catalyzed Direct Synthesis of Diaryl 1,2-Diketones from Aryl Iodides and Propiolic Acids
作者:Hongkeun Min、Thiruvengadam Palani、Kyungho Park、Jinil Hwang、Sunwoo Lee
DOI:10.1021/jo501089k
日期:2014.7.3
via the direct decarboxylativecoupling reaction of aryl propiolicacids and their oxidation. The optimized conditions are that the reaction of aryl propiolicacids and aryl iodides is conducted at 140 °C for 6 h in the presence of 10 mol % CuI/Cu(OTf)2 and Cs2CO3, after which HI (aq) is added and further reacted. The method shows good functional group tolerance toward ester, aldehyde, cyano, and nitro
通过芳基丙酸的直接脱羧偶联反应及其氧化反应合成苯甲醚衍生物,例如二芳基1,2-二酮。优化的条件是在10 mol%CuI / Cu(OTf)2和Cs 2 CO 3的存在下,芳基丙酸和芳基碘化物的反应在140°C下进行6 h ,之后HI(aq)为加入并进一步反应。该方法显示出对酯,醛,氰基和硝基的良好官能团耐受性。另外,在钯和铜催化剂的存在下,从芳基碘化物和丙酸获得对称的二芳基1,2-二酮。