Synthesis of 1,3-diselenyl-dihydroisobenzofurans <i>via</i> electrochemical radical selenylation with substituted <i>o</i>-divinylbenzenes and diselenides
作者:Ying Wang、Ning Xu、Weiwei Li、Jiaojiao Li、Yijun Huo、Wenrong Zhu、Qiang Liu
DOI:10.1039/d2ob00254j
日期:——
efficient electrochemical method for the direct synthesis of complicated 1,3-diselenyl-dihydroisobenzofurans was developed under external oxidant free conditions at room temperature from substituted o-divinylbenzenes and diselenides. A radical mechanism is proposed for this novel and practical transformation.
Palladium nanoparticles stabilized by metal–carbon covalent bond: An efficient and reusable nanocatalyst in cross-coupling reactions
作者:Dhandapani Ganapathy、Govindasamy Sekar
DOI:10.1016/j.catcom.2013.04.028
日期:2013.9
Palladiumnanoparticlesstabilized by PdC(binaphthyl) covalent bonds have been designed and synthesized. This new class of Pd nanoparticles was efficiently used as reusable catalysts for CC bond forming Heck, Suzuki–Miyaura and Sonogashira cross coupling reactions with high turnover. Even after the several catalytic cycles the Pd NPs had the same reactivity and particle size without any apparent agglomerization
已经设计并合成了由Pd C (联萘基)共价键稳定的钯纳米粒子。这类新型的Pd纳米颗粒可有效地用作可重复使用的催化剂,用于形成高转化率的Heck,Suzuki-Miyaura和Sonogashira交叉偶联反应的C C键。即使经过数次催化循环,Pd NP仍具有相同的反应性和粒径,而没有任何明显的团聚。