区别于传统Pd膜体系,作者将Ag工作电极置于水包油型Pickering乳液内,同时利用纳米Pd修饰的碳纳米管(Pd/CNTs)来稳定乳液,通过电子在CNT到集流体的传导形成乳液滴网络,来极大增加电催化活性表面积,在油-水界面处,水系电解质中质子在Pd纳米颗粒上发生电还原,从而促使...
Pd-catalysisDecarboxylationAqueous mediumDominoMicrowavesA copper free [Pd]-catalyzed domino intramolecular Heck and intermolecular decarboxylative Sonogashira couplings, for the synthesis of alkyne bearing heterocyclic compounds with a quaternary carbon atom, is described. Notably, this dual bond forming ...
- CATALYSIS SCIENCE AND TECHNOLOGY -CAMBRIDGE- 被引量: 0发表: 2018年 ChemInform Abstract: Amine Directed Pd(II)-Catalyzed C—H Activation-Intramolecular Amination of N-Het(aryl)/Acyl Enaminonitriles and Enaminones: An Approa... The reaction is characterized by high regioselectivity and functional...
综上所述,史炳锋教授团队报道了首例利用不对称C(sp3)–H活化策略构建膦中心手性二烷基膦酰胺化合物的方法。该工作以“Pd(II)-Catalyzed Enantioselective C(sp3)–H Arylation toward P-Stereogenic Dialkylphosphinamides”为题发表在ACS...
Pd作为贵金属中的一员,在加氢过程中表现出优异的活性,但它具有选择性有限,稳定性较差等局限性。随着催化剂制备技术的进步,通过调节活性位点的电子和几何结构来优化其催化加氢性能,合成了具有不同表面结构的Pd基催化剂。目前,尽管对Pd基催化剂的研究非常广泛,但仍都是采用“试错法”寻找高效催化剂,这很大程度上是由...
有鉴于此,印度理工学院Debabrata Maiti等报道一种使用Pd作为单一的金属催化剂可见光催化交叉亲电试剂偶联平台。 该反应体系能够通过配体控制反应,其中钯催化剂的双重催化循环,两个Pd催化剂通过键离解焓区分亲电试剂的方式的协同催化。 该反应的条件...
Oxidative dimerization: Pd(II) catalysis in the presence of oxygen using aqueous media. 来自 EBSCO 喜欢 0 阅读量: 15 作者: Parrish,Jay,P.,Jung,Young,C.,Floyd,Ryan,J.,Kyung 摘要: Reported herein is a method for the formation of symmetric biaryls and dienes via oxidative dimerization of ...
Synergistic Pd/Enamine Catalysis: A Strategy for the C–H/C–H Oxidative Coupling of Allylarenes with Unactivated Ketones 来自 Semantic Scholar 喜欢 0 阅读量: 30 作者:S Tang,X Wu,W Liao,K Liu,C Liu,S Luo,A Lei 摘要: The first example for achieving C—H/C—H oxidative coupling of ...
ity in Pd catalysis Coordination mode for turn-based phosphine ligands: the origin of selectivity in Pd catalysisCoordination mode for turn-based phosphine ligands: the origin of selectivity in Pd catalysisPhosphinePalladiumAllylationβ-turnA series of experiments was performed to determine the nature ...
4) Pd catalysis Pd催化 例句>> 5) Pd catalyst Pd催化剂 1. This dissertation also studied the direct synthesis of H_2O_2 from H_2 and O_2 undernormal pressure over polyoxometalates-supportedPd catalysts in the absence of anyliquid acid or halide additives in the liquid phase. ...