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.
H<sub>2</sub>O<sub>2</sub>-mediated room temperature synthesis of 2-arylacetophenones from arylhydrazines and vinyl azides in water
作者:Mengqiang Luo、Yaohong Zhang、Ping Fang、Yan Li、Chenze Qi、Yong Li、Runpu Shen、Kai Cheng、Hai Wang
DOI:10.1039/d1ob02023d
日期:——
practical methodology for the roomtemperaturesynthesis of 2-arylacetophenones in water has been discovered. The facile and efficient transformation involves the oxidative radical addition of arylhydrazines with α-aryl vinyl azides in the presence of H2O2 (as a radical initiator) and PEG-800 (as a phase-transfer catalyst). From the viewpoint of green chemistry and organic synthesis, the present protocol is
已经发现了一种用于在水中室温合成 2-芳基苯乙酮的环境友好、经济高效且实用的方法。简便有效的转化涉及芳基肼与 α-芳基乙烯基叠氮化物在 H 2 O 2(作为自由基引发剂)和 PEG-800(作为相转移催化剂)存在下的氧化自由基加成。从绿色化学和有机合成的角度来看,本协议具有重要意义,因为它使用了廉价、无毒且易于获得的起始材料和试剂,并且易于进行克级合成,这为获取 2 提供了有吸引力的策略-芳基苯乙酮。
Thianthrenation-Enabled α-Arylation of Carbonyl Compounds with Arenes
作者:Xiao-Xue Nie、Yu-Hao Huang、Peng Wang
DOI:10.1021/acs.orglett.0c02913
日期:2020.10.2
The Pd-catalyzed α-arylation of carbonylcompounds with simple arenes enabled by site-selective thianthrenation has been demonstrated. This one-pot process using thianthrenium salts as the traceless arylating reagents features mild conditions and a broad substrate scope. In addition, this protocol could also tolerate the heterocyclic carbonylcompounds and complex bioactive molecules, which is appealing