Cross-Coupling of Sodium Sulfinates with Aryl, Heteroaryl, and Vinyl Halides by Nickel/Photoredox Dual Catalysis
作者:Huifeng Yue、Chen Zhu、Magnus Rueping
DOI:10.1002/anie.201711104
日期:2018.1.26
catalyzed sulfonylation reaction of aryl, heteroaryl, and vinylhalides has been achieved for the first time. This newly developed sulfonylation protocol provides a versatile method for the synthesis of diverse aromatic sulfones at room temperature and shows excellent functional group tolerance. The electrophilic coupling partners are not limited to aryl, heteroaryl, and vinyl bromides and iodides, but also
Sulfonylation of Aryl Halides by Visible Light/Copper Catalysis
作者:Qiuli Yan、Wenwen Cui、Xiuyan Song、Guiyun Xu、Min Jiang、Kai Sun、Jian Lv、Daoshan Yang
DOI:10.1021/acs.orglett.1c01050
日期:2021.5.7
An efficient visible-light-assisted, copper-catalyzed sulfonylation of arylhalides with sulfinates is reported. In our protocol, a single ligand CuI photocatalyst formed in situ was used in the photocatalytic transformation. Diverse organosulfones were obtained in moderate to good yields. This strategy demonstrates a promising approach toward the synthesis of diverse and useful organosulfones.
General Copper-Catalyzed Transformations of Functional Groups from Arylboronic Acids in Water
作者:Haijun Yang、Yong Li、Min Jiang、Junmei Wang、Hua Fu
DOI:10.1002/chem.201003711
日期:2011.5.9
A simple and general copper‐catalyzed method has been developed for transformations of various functionalgroups (I, N3, SO2R, OH, NH2, and NO2) on aromatic rings fromarylboronicacids in water under air. The protocol uses cheap and readily available inorganic salts (KI, NaN3, NaSO2R, NaOH, NaNO2) and aqueous ammonia as the functional‐group sources, simple Cu2O/NH3 as the catalyst system, environmentally
简单和一般铜催化方法已被开发用于各种官能团的变换( I, Ñ 3, SO 2 R, OH, NH 2,和 NO 2)从在水中的芳基硼酸的芳环在空气中。该协议使用廉价且容易获得的无机盐(KI,NaN 3,NaSO 2 R,NaOH,NaNO 2)和氨水作为官能团来源,即简单的Cu 2 O / NH 3。作为催化剂体系,环境友好的水作为溶剂,空气中的氧气作为氧化剂。重要的是,水中的铜催化剂体系是可回收的。该研究应为芳香环上官能团的相互转化提供有用的策略。
A Mild and Efficient Synthesis of Aryl Sulfones from Aryl Chlorides and Sulfinic Acid Salts Using Microwave Heating
作者:Sheng-rong Guo、Yan-qin Yuan
DOI:10.1055/s-0031-1289541
日期:2011.11
The CuCl-catalyzed coupling of aryl chlorides and sulfinic acid salts provides a simple and extremely efficient route to unsymmetrical aryl sulfones in high to excellent yields under microwave irradiation within 3-30 minutes.
A convenient and efficient synthesis of sulfones from sulfinates and aryl halides was developed. The reaction occurred under UV irradiation without transition metal catalyst or photocatalyst. A radical pathway via single‐electron transfer (SET) of electron donor‐acceptor (EDA) complex was proposed based on UV‐vis spectroscopy, radical inhibiting and trapping experiments.