Journal of Organometallic Chemistry最新文献

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A new Schiff-base-N-propylhydrazine-1-carbothioamide complex of copper on boehmite nanoparticles as a recoverable catalyst in the homoselective synthesis of 5-substituted tetrazoles 沸石纳米颗粒上新的席夫碱-N-丙基肼-1-硫代甲酰胺铜络合物作为 5-取代的四唑的同选择性合成中的可回收催化剂
IF 2.1 3区 化学
Journal of Organometallic Chemistry Pub Date : 2024-10-09 DOI: 10.1016/j.jorganchem.2024.123405
Elham Mohseni , Arash Ghorbani-Choghamarani , Bahman Tahmasbi , Masoomeh Norouzi
{"title":"A new Schiff-base-N-propylhydrazine-1-carbothioamide complex of copper on boehmite nanoparticles as a recoverable catalyst in the homoselective synthesis of 5-substituted tetrazoles","authors":"Elham Mohseni ,&nbsp;Arash Ghorbani-Choghamarani ,&nbsp;Bahman Tahmasbi ,&nbsp;Masoomeh Norouzi","doi":"10.1016/j.jorganchem.2024.123405","DOIUrl":"10.1016/j.jorganchem.2024.123405","url":null,"abstract":"<div><div>In this work, 2-(2-hydroxybenzylidene)hydrazine-1-carbothioamide (Schiff-base-HBHCT) was synthesized, and it was identified by FT-IR, <sup>1</sup>H NMR, and <sup>13</sup>C NMR spectroscopies. Besides, 3-iodopropyltrimethoxysilane (3-IPTMS) was synthesized by a simple S<sub>N</sub>2 reaction of 3-chloropropyltrimethoxysilane and potassium iodide in dry acetone. Also, boehmite nanoparticles are synthesized by a simple route and available commercial materials. Then, the surface of boehmite nanoparticles was modified by 3-IPTMS, and then it was further functionalized by Schiff-base-HBHCT. Finally, the copper ion became complex with functionalized Schiff-base-HBHCT (Cu-Schiff-base-HBHCT@boehmite). The particle size and morphology of Cu-Schiff-base-HBHCT@boehmite were studied by SEM images. Organic moieties and elemental composition of Cu-Schiff-base-HBHCT@boehmite were investigated by TGA, AAS, EDS, and WDX analysis. The surface area of Cu-Schiff-base-HBHCT@boehmite was calculated by nitrogen adsorption/desorption analysis, including BJH and BET methods. In the final step, the catalytic application of Cu-Schiff-base-HBHCT@boehmite was studied in the homoselective synthesis of tetrazoles. This catalyst has shown good reusability in the synthesis of tetrazoles.</div></div>","PeriodicalId":374,"journal":{"name":"Journal of Organometallic Chemistry","volume":"1022 ","pages":"Article 123405"},"PeriodicalIF":2.1,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Recent advances in the chemistry of 2-metallanaphthalenes: 2-telluranaphthalene, 2-stibanaphthalene, 2-stannanaphthalene, 2-germanaphthalene and their analogues 2- 金属萘化学的最新进展:2-碲萘、2-链烷萘、2-链烷萘、2-锗萘及其类似物
IF 2.1 3区 化学
Journal of Organometallic Chemistry Pub Date : 2024-10-09 DOI: 10.1016/j.jorganchem.2024.123407
Hamdy K. Thabet , Mohamed H. Helal , Moustafa A. Gouda
{"title":"Recent advances in the chemistry of 2-metallanaphthalenes: 2-telluranaphthalene, 2-stibanaphthalene, 2-stannanaphthalene, 2-germanaphthalene and their analogues","authors":"Hamdy K. Thabet ,&nbsp;Mohamed H. Helal ,&nbsp;Moustafa A. Gouda","doi":"10.1016/j.jorganchem.2024.123407","DOIUrl":"10.1016/j.jorganchem.2024.123407","url":null,"abstract":"<div><div>The fusion of benzene with the c edge of 4<em>H</em>-telluropyran, 4<em>H</em>-stanine, 4<em>H</em>-stibinine or 4<em>H</em>-germine <strong>2d</strong> motifs in hybrid configurations forms four distinct structures: condensed 2-telluranaphthalene, 2-stibanaphthalene, 2-stannanaphthalene and 2-germanaphthalene (2-metallanaphthalenes). 2-Metallanaphthalene (Metal= Te, Sb, Sn and Ge) is characterized by the presence of a Te, Sb, Sn and Ge atom in the second position instead of the first of 2-metallanaphthalene. To our knowledge, no reports have been published specifically on this scaffold, which has primarily been used as a building block. The synthesis of 2-telluranaphthalene, 2-stibanaphthalene, 2-stannanaphthalene or 2-germanaphthalene and their analogues can be achieved through various chemical pathways, including the Sonogashira coupling reactions, nucleophilic addition, organometallic reactions, metal substitution, and other methods.</div></div>","PeriodicalId":374,"journal":{"name":"Journal of Organometallic Chemistry","volume":"1022 ","pages":"Article 123407"},"PeriodicalIF":2.1,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Merrifield resin-supported N-heterocyclic carbene-silver complex appended with caffeine for Sonogashira cross-coupling reaction 梅里菲尔德树脂支撑的 N-杂环碳银络合物与咖啡因的索诺伽希拉交叉偶联反应
IF 2.1 3区 化学
Journal of Organometallic Chemistry Pub Date : 2024-10-04 DOI: 10.1016/j.jorganchem.2024.123406
Taha Aalhusaini , Dattaprasad Pore , Gajanan Rashinkar
{"title":"Merrifield resin-supported N-heterocyclic carbene-silver complex appended with caffeine for Sonogashira cross-coupling reaction","authors":"Taha Aalhusaini ,&nbsp;Dattaprasad Pore ,&nbsp;Gajanan Rashinkar","doi":"10.1016/j.jorganchem.2024.123406","DOIUrl":"10.1016/j.jorganchem.2024.123406","url":null,"abstract":"<div><div>A novel Merrifield resin-supported <em>N</em>-heterocyclic carbene (NHC)-silver(I) complex, utilizing caffeine as an environmentally friendly NHC precursor, has been synthesized by a multi-step approach. The confirmation of the formation of the complex was achieved through the utilization of a number of analytical methods, including Fourier-transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), electron dispersive X-ray (EDX), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) analysis. The complex was efficiently used as a highly effective heterogeneous catalyst for the Sonogashira coupling reaction involving aryl halides and terminal alkynes. The complex was retrieved through a straightforward filtration technique, significantly simplifying the purification step and allowed successive reuse for multiple times with minimal loss in activity.</div></div>","PeriodicalId":374,"journal":{"name":"Journal of Organometallic Chemistry","volume":"1023 ","pages":"Article 123406"},"PeriodicalIF":2.1,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142554766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Preparation and characterization of axially substituted silicon phthalocyanine-modified nano TiO2 thin films 轴向取代硅酞菁改性纳米二氧化钛薄膜的制备与表征
IF 2.1 3区 化学
Journal of Organometallic Chemistry Pub Date : 2024-10-04 DOI: 10.1016/j.jorganchem.2024.123408
Hilal Fazlı , Çağla Akkol , Ömer Kesmez , Ece Tugba Saka , Zekeriya Biyiklioglu
{"title":"Preparation and characterization of axially substituted silicon phthalocyanine-modified nano TiO2 thin films","authors":"Hilal Fazlı ,&nbsp;Çağla Akkol ,&nbsp;Ömer Kesmez ,&nbsp;Ece Tugba Saka ,&nbsp;Zekeriya Biyiklioglu","doi":"10.1016/j.jorganchem.2024.123408","DOIUrl":"10.1016/j.jorganchem.2024.123408","url":null,"abstract":"<div><div>Nowadays, reaching of industrial wastes containing durable organic pollutants to water resources is one of the important environmental problems. Cost-effective, nontoxic, thermally and chemically stable, light-sensitive photocatalysts are being developed for the removal of these wastes from water resources. Our aim in this study is to synthesize newly bis-[(4-pyrenebutoxy)]phthalocyaninato silicon (<strong>Pyrn-C<sub>4</sub>-SiPc</strong>) and bis-[n-(9-anthrylmethyl)-n-methylamino]phthalocyaninato silicon (<strong>Anthr-C<sub>3</sub>-SiPc</strong>) molecules and then modify onto TiO<sub>2</sub> nanoparticles. The sol-gel method was used during the modification process to achieve synthesis at lower temperatures to obtain nano TiO<sub>2</sub> crystals in the anatase form. 10% and 25% concentrations of silicon phthalocyanine-modified TiO<sub>2</sub> nanoparticles which are approximately around 5 nm the particle sizes were added to the preparated hybride organic-inorganic polymer network, and were applied to the glass surface by spray method. The resulting coatings’ thicknesses, photocatalytic activities, and optical, physical, morphological, and mechanical properties were tested. The adhesion of the coatings sprayed onto the glass surface was measured as 5B The coatings created were found to have high hardness and resistance in the tests conducted. This research successfully developed photocatalytic hybrid nanocomposite films that are highly transparent with 90% light transmittance exhibit robust photocatalytic activity, and remain color-stable.</div></div>","PeriodicalId":374,"journal":{"name":"Journal of Organometallic Chemistry","volume":"1022 ","pages":"Article 123408"},"PeriodicalIF":2.1,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142445911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Zirconium/niacin metal-organic framework preparation, characterization and assessment as a catalyst in one-pot synthesis of xanthene-1,8-dione derivatives with docking validation as anti-inflammatory 锆/烟酸金属有机框架的制备、表征和评估,作为催化剂用于香蒽-1,8-二酮衍生物的一锅合成以及作为抗炎剂的对接验证
IF 2.1 3区 化学
Journal of Organometallic Chemistry Pub Date : 2024-09-28 DOI: 10.1016/j.jorganchem.2024.123403
Asma S. Al-Wasidi
{"title":"Zirconium/niacin metal-organic framework preparation, characterization and assessment as a catalyst in one-pot synthesis of xanthene-1,8-dione derivatives with docking validation as anti-inflammatory","authors":"Asma S. Al-Wasidi","doi":"10.1016/j.jorganchem.2024.123403","DOIUrl":"10.1016/j.jorganchem.2024.123403","url":null,"abstract":"<div><div>The zirconium/niacin metal-organic framework (MOF) was prepared by an efficient solvothermal method and the nanostructure of MOF was identified by IR, SEM, EDX, XRD, BET and TEM. The prepared Zr-MOF was evaluated as a catalyst in organic synthesis. Tetrahydro xanthene-1,8‑dione derivatives were synthesized by a one-pot reaction between 2 mol of dimedone and 1 mole of aromatic aldehyde in the presence of the catalytic amount of Zr-MOF under solvent-free conditions. The prepared ligands were evaluated as COX-1 and COX-2 inhibitors and the data obtained explained that the ligands 4-(3,3,6,6-tetramethyl-1,8-dioxo-2,3,4,5,6,7,8,9-octahydro-1<em>H</em>-xanthen-9-yl)phenyl benzoate (3 g), 3,3,6,6-tetramethyl-9-(5-methylfuran-2-yl)-3,4,5,6,7,9-hexahydro-1<em>H</em>-xanthene-1,8(2<em>H</em>)‑dione (<strong>3i</strong>) and 9-(3-(4-chlorophenyl)-1-phenyl-1<em>H</em>-pyrazol-4-yl)-3,3,6,6-tetramethyl-3,4,5,6,7,9-hexahydro-1<em>H</em>-xanthene-1,8(2<em>H</em>)‑dione (<strong>3j</strong>) gave the promised data.</div></div>","PeriodicalId":374,"journal":{"name":"Journal of Organometallic Chemistry","volume":"1022 ","pages":"Article 123403"},"PeriodicalIF":2.1,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142425588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
High-performance ammonium perchlorate propellants enabled by ferrocene-functionalized carbon nanotube catalysts 二茂铁功能化碳纳米管催化剂催化的高性能高氯酸铵推进剂
IF 2.1 3区 化学
Journal of Organometallic Chemistry Pub Date : 2024-09-24 DOI: 10.1016/j.jorganchem.2024.123401
Qun Luo, Xueyi Chang, Zhiyu Cheng, Yongfu Qiu, Guiping Tan, Muqing Chen
{"title":"High-performance ammonium perchlorate propellants enabled by ferrocene-functionalized carbon nanotube catalysts","authors":"Qun Luo,&nbsp;Xueyi Chang,&nbsp;Zhiyu Cheng,&nbsp;Yongfu Qiu,&nbsp;Guiping Tan,&nbsp;Muqing Chen","doi":"10.1016/j.jorganchem.2024.123401","DOIUrl":"10.1016/j.jorganchem.2024.123401","url":null,"abstract":"<div><div>Ferrocene-based burning rate catalysts (BRCs) are essential for controlling the combustion of ammonium perchlorate (AP)-based composite solid propellants. However, their efficacy is often limited by migration during storage, leading to performance degradation. This work reports a novel class of covalently grafted ferrocene-functionalized multi-walled carbon nanotubes (CNT-Fc-n, <em>n</em> = 1, 2, 3) exhibiting enhanced catalytic activity and anti-migration properties. Structural characterization confirmed successful functionalization, while electrochemical analysis revealed facilitated electron transfer during AP decomposition due to π-π conjugation within the CNT-Fc-n structure. Consequently, CNT-Fc-n catalysts significantly reduced the AP decomposition activation energy, with CNT-Fc-3 (highest ferrocene loading) demonstrating the most pronounced catalytic effect. Specifically, CNT-Fc-3 lowered the AP decomposition temperature by 103 °C and 39 °C compared to pure AP and Catocene-catalyzed AP, respectively. Kinetic analysis revealed a 28-fold increase in the rate constant for CNT-Fc-3 catalyzed AP decomposition compared to pure AP. Moreover, the unique architecture of CNT-Fc-3 significantly reduced migration during a 50 °C simulation. This work presents a promising strategy for developing high-performance, migration-resistant BRCs for next-generation solid propellants.</div></div>","PeriodicalId":374,"journal":{"name":"Journal of Organometallic Chemistry","volume":"1022 ","pages":"Article 123401"},"PeriodicalIF":2.1,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142320228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhancing quantum capacitance in BNyne/Graphene heterostructures through transition-metal dopants for high-performance supercapacitors 通过过渡金属掺杂剂提高 BNyne/石墨烯异质结构的量子电容,实现高性能超级电容器
IF 2.1 3区 化学
Journal of Organometallic Chemistry Pub Date : 2024-09-24 DOI: 10.1016/j.jorganchem.2024.123404
Miguel Escobar , Maryam Ghareeb , Mustafa Mudhafar , Marwah.J. Hezam , Nouby M. Ghazaly , Shaima Haithem Zaki , Hussam Abdali Abdulridui , Ayodele Lasisi , Saiful Islam
{"title":"Enhancing quantum capacitance in BNyne/Graphene heterostructures through transition-metal dopants for high-performance supercapacitors","authors":"Miguel Escobar ,&nbsp;Maryam Ghareeb ,&nbsp;Mustafa Mudhafar ,&nbsp;Marwah.J. Hezam ,&nbsp;Nouby M. Ghazaly ,&nbsp;Shaima Haithem Zaki ,&nbsp;Hussam Abdali Abdulridui ,&nbsp;Ayodele Lasisi ,&nbsp;Saiful Islam","doi":"10.1016/j.jorganchem.2024.123404","DOIUrl":"10.1016/j.jorganchem.2024.123404","url":null,"abstract":"<div><div>Using Density functional theory (DFT), we investigated the charge storage capacity, quantum capacitance (C<sub>Q</sub>), geometry and electronic structures of BNyne/graphene heterostructures (BNyneGHs), as well as the impact of transition-metal dopants on their C<sub>Q</sub>. Our results showed that doping was more effective than vacancy defects in improving the C<sub>Q</sub> of BNyneGHs. Ti-doped BNyneGHs exhibited the highest C<sub>Q</sub> value of 360.08 μF/cm<sup>2</sup>, making them ideal positive electrode materials for supercapacitors (SCs). The presence of doping agents was found to enhance the density of states (DOS) around the Fermi level, resulting in improved C<sub>Q</sub>. Our calculations identified potential cathode or anode materials for high-energy-density SCs, providing theoretical support for the design of high-capacitance SCs.</div></div>","PeriodicalId":374,"journal":{"name":"Journal of Organometallic Chemistry","volume":"1022 ","pages":"Article 123404"},"PeriodicalIF":2.1,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142425589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A new class of silatranes derived from nitrilotris(methylenephenylphosphinic) acid 从氮三(亚甲基苯基膦酸)衍生出的一类新型硅烷
IF 2.1 3区 化学
Journal of Organometallic Chemistry Pub Date : 2024-09-23 DOI: 10.1016/j.jorganchem.2024.123402
Steven Knerr , Erica Brendler , Jan Zuber , Edwin Kroke , Jörg Wagler
{"title":"A new class of silatranes derived from nitrilotris(methylenephenylphosphinic) acid","authors":"Steven Knerr ,&nbsp;Erica Brendler ,&nbsp;Jan Zuber ,&nbsp;Edwin Kroke ,&nbsp;Jörg Wagler","doi":"10.1016/j.jorganchem.2024.123402","DOIUrl":"10.1016/j.jorganchem.2024.123402","url":null,"abstract":"<div><div>Reactions of a series of trichlorosilanes <em>R</em>SiCl<sub>3</sub> (<em>R</em> = Me, <em>t</em>Bu, Bn, Ph, Vi, Cl) and the tris(trimethylsilyl) derivative of nitrilotris(methylenephenylphosphinic) acid (<strong>NTPA(SiMe<sub>3</sub>)<sub>3</sub></strong>) proceeded with transsilylation (release of Me<sub>3</sub>SiCl) and afforded the respective silatrane-like cage compounds of the type N(CH<sub>2</sub>P(=O)(Ph)O)<sub>3</sub>Si<em>R</em> (<strong>NTPA(Si<em>R</em>)</strong>, <em>R</em> = Me, <em>t</em>Bu, Bn, Ph, Vi, Cl). According to single-crystal X-ray diffraction analyses (for <em>R</em> = Me, <em>t</em>Bu, Bn, Ph, Vi) and DFT analyses (<em>R</em> = Me, Cl), these compounds accommodate [4+1]-coordinate Si atoms in a capped tetrahedral coordination sphere. The environment of the N atom is trigonal pyramidal, with the lone pair pointing toward the Si atom with N⋅⋅⋅Si distances in the range of 2.7451(12) Å (<em>R</em> = Bn) to 2.827(5) Å (<em>R</em> = <em>t</em>Bu). For <em>R</em> = Cl, N⋅⋅⋅Si distances were calculated at the PBE0 level to be 2.748 Å in the isolated molecule, 2.620 Å in a chloroform solvate of the type <strong>NTPA(SiCl)(HCCl<sub>3</sub>)<sub>3</sub></strong>. Analyses of the Intrinsic Bond Orbitals (IBOs) and Natural Localized Molecular Orbitals (NLMOs) revealed polarization of the N-located lone pair toward Si, with only marginal orbital contribution of the Si atom in the resultant NLMO (ca. 1.4% for <em>R</em> = hydrocarbyl, 2.2% for <em>R</em> = Cl, 3.3% for <em>R</em> = Cl(HCCl<sub>3</sub>)<sub>3</sub>).</div></div>","PeriodicalId":374,"journal":{"name":"Journal of Organometallic Chemistry","volume":"1023 ","pages":"Article 123402"},"PeriodicalIF":2.1,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142593979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Protective effect of the perchlorophenyl group in organophosphorus chemistry 有机磷化学中高氯苯基的保护作用
IF 2.1 3区 化学
Journal of Organometallic Chemistry Pub Date : 2024-09-23 DOI: 10.1016/j.jorganchem.2024.123385
Mª Ángeles García-Monforte, Miguel Baya, Antonio Martín, Babil Menjón
{"title":"Protective effect of the perchlorophenyl group in organophosphorus chemistry","authors":"Mª Ángeles García-Monforte,&nbsp;Miguel Baya,&nbsp;Antonio Martín,&nbsp;Babil Menjón","doi":"10.1016/j.jorganchem.2024.123385","DOIUrl":"10.1016/j.jorganchem.2024.123385","url":null,"abstract":"<div><div>The homoleptic phosphine with the bulky perchlorophenyl group, (C<sub>6</sub>Cl<sub>5</sub>)<sub>3</sub>P (<strong>1</strong>), exhibits trigonal pyramidal structure (<em>TPY</em>-3), yet considerably flattened: Σ(C–P–C') = 321.0(1)°. Key steric and electronic properties of this simple organophosphorus species have been estimated by calculation. Attending to its characteristic features, <strong>1</strong> can be rated as a deactivated phosphine, where the less-basic P atom is sterically shielded by the bulky C<sub>6</sub>Cl<sub>5</sub> groups. This marked inertness notwithstanding, it has been possible to obtain (under harsh conditions) derivatives with phosphorus in high oxidation state, namely the phosphine oxide (C<sub>6</sub>Cl<sub>5</sub>)<sub>3</sub>PO (<strong>2</strong>) and the difluorophosphorane (C<sub>6</sub>Cl<sub>5</sub>)<sub>3</sub>PF<sub>2</sub> (<strong>3</strong>). These four- and five-substituted derivatives respectively exhibit trigonal pyramidal (<em>TPY</em>-4) and trigonal bipyramidal (<em>TBPY</em>-5) structures. The Σ(C–P–C') value steadily increases along the series <strong>1</strong>–<strong>3</strong>, according to the referred structural variation. The P–C bond length is, in turn, invariably maintained at about 185 pm regardless of the different oxidation state, the increasing number of substituents around the P atom and the overall geometry. The hypervalent difluorophosphorane (C<sub>6</sub>Cl<sub>5</sub>)<sub>3</sub>PF<sub>2</sub> (<strong>3</strong>) dissociates one of the axial fluorides in the gas phase giving rise to the fluorophosphonium cation [(C<sub>6</sub>Cl<sub>5</sub>)<sub>3</sub>PF]<sup>+</sup>, as detected by mass spectrometry. This cation is identified as a Lewis superacid.</div></div>","PeriodicalId":374,"journal":{"name":"Journal of Organometallic Chemistry","volume":"1022 ","pages":"Article 123385"},"PeriodicalIF":2.1,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A sequential olefin hydroboration/Suzuki coupling for denitrogenative alkylation of benzotriazinones with α-olefins 苯并三嗪酮与α-烯烃进行脱氮烷基化的烯烃氢硼化/铃木偶联顺序法
IF 2.1 3区 化学
Journal of Organometallic Chemistry Pub Date : 2024-09-21 DOI: 10.1016/j.jorganchem.2024.123383
Fengze Wang, Yingying Hong, Xuanxuan Zhang, Gang Zou
{"title":"A sequential olefin hydroboration/Suzuki coupling for denitrogenative alkylation of benzotriazinones with α-olefins","authors":"Fengze Wang,&nbsp;Yingying Hong,&nbsp;Xuanxuan Zhang,&nbsp;Gang Zou","doi":"10.1016/j.jorganchem.2024.123383","DOIUrl":"10.1016/j.jorganchem.2024.123383","url":null,"abstract":"<div><div>A denitrogenative alkylation of <em>N</em>-aryl benzotriazinones using readily available α-olefins as alkyl sources via a hydroboration/palladium-catalyzed alkyl Suzuki coupling sequence is reported to afford ortho <em>n</em>-alkyl benzamides in good to excellent yields. Scope and limitations of the sequential hydroboration/Suzuki coupling protocol have been explored, showing large steric effects of both benzotriazinone core and alkylboranes. Only primary alkyl group of trialkylboranes from <em>anti</em>-Markovnikov hydroboration of α-olefins could be effectively coupled, making the protocol highly selective for ortho <em>n</em>-alkyl benzamides.</div></div>","PeriodicalId":374,"journal":{"name":"Journal of Organometallic Chemistry","volume":"1022 ","pages":"Article 123383"},"PeriodicalIF":2.1,"publicationDate":"2024-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142358116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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