<i>N</i>-heterocyclic carbene platinum complexes functionalized with a polyether chain and silyl group: Synthesis and application as a catalyst for hydrosilylation
GRAPHICAL ABSTRACT ABSTRACT The synthesis and characterization of new N-heterocycliccarbeneplatinum(II) complexes functionalized with a polyether chain and silyl group are described. In addition, their application towards the catalytic hydrosilylation of unsaturated carbon–carbon bonds, including alkenes, alkynes, vinyl ether, and unsaturated esters, is reported. These new complexes exhibit both
图形摘要 摘要描述了用聚醚链和甲硅烷基官能化的新型 N-杂环卡宾铂 (II) 配合物的合成和表征。此外,还报道了它们在不饱和碳-碳键(包括烯烃、炔烃、乙烯基醚和不饱和酯)的催化氢化硅烷化中的应用。这些新的配合物表现出优异的催化活性和氢化硅烷化选择性。催化系统可循环使用 >27 次。
Silyl-Directed, Iridium-Catalyzed <i>ortho</i>-Borylation of Arenes. A One-Pot <i>ortho</i>-Borylation of Phenols, Arylamines, and Alkylarenes
作者:Timothy A. Boebel、John. F. Hartwig
DOI:10.1021/ja8015878
日期:2008.6.18
regioselectivity of the borylation of arenescatalyzed by the combination of 4,4'-di-tert-butylbipyridine (dtbpy) and [Ir(cod)Cl]2 has typically been governed by steric effects. We describe a strategy that makes use of a new substituent for ortho-functionalization to overcome this bias. We show that arenes containing hydrosilyl substituents on an atom attached to the arene ring undergo borylation at the position
Intermolecular Dehydrogenative C−H/Si−H Cross‐Coupling for the Synthesis of Arylbenzyl Bis(silanes)
作者:Lijun You、Wei Yuan、Chuan He
DOI:10.1002/ejoc.202100474
日期:2021.6.7
to access bis(silane) compounds is described. Under simple and mild conditions, a variety of new functionalized arylbenzyl bis(silane) compounds were obtained in good yields with excellent chemo- and regio-selectivity from readily available starting materials. Further derivatization of the arylbenzyl bis(silanes) demonstrated the rich chemistry of these multi-functionalized organosilanes, which could