Visible-Light-Mediated Synthesis of Diaryl Ethers from Arylboronic Acids and Diaryliodonium Salts
作者:Li Liu、Jiaqi Tang、Jian Qiang、Jian Li、Mingyang He
DOI:10.3184/174751916x14597761998193
日期:2016.5
With visible-light irradiation, a simple and metal-free photocatalytic system for the synthesis of diaryl ethers from arylboronic acids and diaryliodonium salts has been developed. The reaction proceeded in high yield for a range of different substrates in the presence of eosin Y under mild reaction conditions.
在可见光照射下,开发了一种简单且无金属的光催化体系,用于从芳基硼酸和二芳基碘盐合成二芳基醚。在温和的反应条件下,在曙红 Y 的存在下,对于一系列不同的底物,反应以高产率进行。
C–H arylation of azaheterocycles: a direct ligand-free and Cu-catalyzed approach using diaryliodonium salts
An efficient and high yielding Cu-catalyzed direct CâH arylation of azaheterocycles including oxadiazoles, thiadiazoles, benzoxazoles and benzothiazoles has been achieved by employing easily accessible diaryliodonium salts.
Access to 2-Arylindoles via Decarboxylative C−C Coupling in Aqueous Medium and to Heteroaryl Carboxylates under Base-Free Conditions using Diaryliodonium Salts
作者:Velladurai Arun、Meenakshi Pilania、Dalip Kumar
DOI:10.1002/asia.201601290
日期:2016.12.6
accessible heteroaromatic carboxylic acids and diaryliodonium salts were successfully employed to construct valuable 2‐arylindoles and heteroaryl carboxylates in a regioselective fashion. C2‐arylated indoles were produced using a Pd‐catalyzed decarboxylative strategy in water without any base, oxidant, or ligand. Heteroaryl carboxylates were prepared under metal and base‐free conditions. This protocol was
Copper-catalysed N-arylation of fused triazoles using diaryliodonium salts as an aryl source is described. This scalable protocol displayed good compatibility towards diverse sensitive functional groups like ester, alkyl and nitro groups and halogens (F, Cl, Br). The synthetic usefulness of the prepared triazolium salts was proved by preparing α-hydroxyketone through benzoin condensation. Photophysical