{"title":"Synthesis of a series of Iridium(III) salen complexes: Axial ligand substitution and catalytic reactivity","authors":"Daqing Chen, Chenghui Han","doi":"10.1016/j.jorganchem.2025.123707","DOIUrl":null,"url":null,"abstract":"<div><div>A panel of <em>trans</em>-Ir(III)-salen complexes bearing axial alkyl, alkynyl, acyl, pyridine, and NHC-carbene ligands were synthesized through diverse ligand substitution methodologies, including carbonyl dissociation, C<img>H bond activation of <em>p</em>-tolualdehyde, C<img>N bond activation of triethylamine, and coupling reaction with 4-ethynyltoluene. Subsequent investigation of their catalytic properties revealed notable reactivity: the alkyl-Ir(III)-salen complex exhibited high catalytic activity for intermolecular carbene insertion into N<img>H bonds, while the alkynyl-Ir(III) analogue demonstrated excellent performance in intramolecular carbene transfer reactions.</div></div>","PeriodicalId":374,"journal":{"name":"Journal of Organometallic Chemistry","volume":"1036 ","pages":"Article 123707"},"PeriodicalIF":2.1000,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Organometallic Chemistry","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0022328X25002001","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
引用次数: 0
Abstract
A panel of trans-Ir(III)-salen complexes bearing axial alkyl, alkynyl, acyl, pyridine, and NHC-carbene ligands were synthesized through diverse ligand substitution methodologies, including carbonyl dissociation, CH bond activation of p-tolualdehyde, CN bond activation of triethylamine, and coupling reaction with 4-ethynyltoluene. Subsequent investigation of their catalytic properties revealed notable reactivity: the alkyl-Ir(III)-salen complex exhibited high catalytic activity for intermolecular carbene insertion into NH bonds, while the alkynyl-Ir(III) analogue demonstrated excellent performance in intramolecular carbene transfer reactions.
通过羰基解离、对甲苯醛的CH键激活、三乙胺的CN键激活以及与4-乙基甲苯的偶联反应等多种配体取代方法,合成了一组含有轴向烷基、炔基、酰基、吡啶和nhc -羰基的反式ir (III)-salen配合物。随后对其催化性能的研究显示了显著的反应性:烷基- ir (III)-salen配合物对分子间碳烯插入到nhh键具有很高的催化活性,而烷基- ir (III)类似物在分子内碳烯转移反应中表现出优异的性能。
期刊介绍:
The Journal of Organometallic Chemistry targets original papers dealing with theoretical aspects, structural chemistry, synthesis, physical and chemical properties (including reaction mechanisms), and practical applications of organometallic compounds.
Organometallic compounds are defined as compounds that contain metal - carbon bonds. The term metal includes all alkali and alkaline earth metals, all transition metals and the lanthanides and actinides in the Periodic Table. Metalloids including the elements in Group 13 and the heavier members of the Groups 14 - 16 are also included. The term chemistry includes syntheses, characterizations and reaction chemistry of all such compounds. Research reports based on use of organometallic complexes in bioorganometallic chemistry, medicine, material sciences, homogeneous catalysis and energy conversion are also welcome.
The scope of the journal has been enlarged to encompass important research on organometallic complexes in bioorganometallic chemistry and material sciences, and of heavier main group elements in organometallic chemistry. The journal also publishes review articles, short communications and notes.