The copper-catalysed Suzuki–Miyaura coupling of alkylboron reagents: disproportionation of anionic (alkyl)(alkoxy)borates to anionic dialkylborates prior to transmetalation
作者:Prakash Basnet、Surendra Thapa、Diane A. Dickie、Ramesh Giri
DOI:10.1039/c6cc05114f
日期:——
A novel Cu-catalyzed Suzuki–Miyaura cross-coupling of alkylboron reagents with aryl and heteroaryl iodides is reported.
报道了一种新型的Cu催化的Suzuki-Miyaura烷基硼试剂与芳基和杂环碘化物的交叉偶联反应。
Addition of aryl radicals generated from electrochemical reduction of aryl halides on carbon-carbon double bonds.
Aryl radicalsgenerated by electrochemical reduction of aryl halides in aprotic medium react with styrene and its derivatives to give arylated addition compounds.
在非质子介质中通过电化学还原芳基卤化物生成的芳基与苯乙烯及其衍生物反应,生成芳基化加成化合物。
Dehydroxylative Arylation of Alcohols via Paired Electrolysis
作者:Zhihui Wang、Xiaoqian Zhao、Hongyu Wang、Xiuyun Li、Zhimin Xu、Velayudham Ramadoss、Lifang Tian、Yahui Wang
DOI:10.1021/acs.orglett.2c03136
日期:2022.10.14
Nonactivated alcohols along with arene compounds are used in electrochemical dehydroxylative arylation for constructing C(sp3)–C(sp2) bonds. The PIII reagent undergoes single-electron anodic oxidation to form its radical cation, which reacts with the alcohol to produce an alkoxytriphenylphosphine radical. Through spontaneous β-scission of the phosphoranyl radical, the C–O bond is cleaved to form an
The hydroarylation of alkenes has emerged as a powerful strategy for arene functionalization. However, aryl chlorides remain a large challenge in this type of reaction due to the chemical inertness of the C(sp2)–Cl bond and high negative reduction potential. Herein, we report an anti-Markovnikov radical hydroarylation of alkenes with aryl chlorides via visible-light photoredox catalysis. The key reactive
A compound represented by the formula below:
wherein R is selected from the group consisting of benzyl, C3-11 alkyl, C3-11 alkenyl, C2-9 branched alkenyl, C3-9 branched alkyl, and -CH2OAc.
下式所代表的化合物:
其中 R 选自由苄基、C3-11 烷基、C3-11 烯基、C2-9 支链烯基、C3-9 支链烷基和 -CH2OAc 组成的组。