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Palladium‐Catalyzed Heck‐Matsuda Reaction of Morita‐Baylis‐Hillman Alcohols with Aryl Triazenes: Unexpected Role of Nitric Acid as the Promoter 钯催化Morita-Baylis-Hillman醇与芳基三氮烯的Heck-Matsuda反应：硝酸作为启动子的意外作用
IF 2.5 3区 化学
European Journal of Organic Chemistry Pub Date : 2025-03-24 DOI: 10.1002/ejoc.202401386
Yue Shen , Mengni Pan , Daming Liu , Hui You , Xinying He , Yang Li , Prof. Dr. Chaoren Shen , Dr. Mengmeng Zhao , Dr. Wanfang Li
{"title":"Palladium‐Catalyzed Heck‐Matsuda Reaction of Morita‐Baylis‐Hillman Alcohols with Aryl Triazenes: Unexpected Role of Nitric Acid as the Promoter","authors":"Yue Shen ,&nbsp;Mengni Pan ,&nbsp;Daming Liu ,&nbsp;Hui You ,&nbsp;Xinying He ,&nbsp;Yang Li ,&nbsp;Prof. Dr. Chaoren Shen ,&nbsp;Dr. Mengmeng Zhao ,&nbsp;Dr. Wanfang Li","doi":"10.1002/ejoc.202401386","DOIUrl":"10.1002/ejoc.202401386","url":null,"abstract":"<div><div>We herein developed a mild and ligand‐free palladium‐catalyzed Heck‐Matsuda reaction between Morita‐Baylis‐Hillman alcohols (MBHAs) and aryl triazenes. After thorough screening of the acids, nitric acid (HNO<sub>3</sub>) was unexpectedly found to be the most effective promoter for in situ generation of arenediazonium salts. This coupling reaction allows for a highly selective production of a various α‐arylmethyl β‐keto esters from readily accessible starting materials.</div></div>","PeriodicalId":167,"journal":{"name":"European Journal of Organic Chemistry","volume":"28 12","pages":"Article e202401386"},"PeriodicalIF":2.5,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142989454","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
Controlled Synthesis of α‐Mono‐ and α,α‐Di‐Halogenated Ketones Through Coupling of Halogenated Diboromethanes with Carboxylic Acid Esters 卤化二硼甲烷与羧酸酯偶联合成α-单和α，α-二卤化酮
IF 2.5 3区 化学
European Journal of Organic Chemistry Pub Date : 2025-03-24 DOI: 10.1002/ejoc.202401396
Chenxu Wu , Liangxuan Xu , Bowen Ren , Jianmei Lu , Chao Liu
{"title":"Controlled Synthesis of α‐Mono‐ and α,α‐Di‐Halogenated Ketones Through Coupling of Halogenated Diboromethanes with Carboxylic Acid Esters","authors":"Chenxu Wu ,&nbsp;Liangxuan Xu ,&nbsp;Bowen Ren ,&nbsp;Jianmei Lu ,&nbsp;Chao Liu","doi":"10.1002/ejoc.202401396","DOIUrl":"10.1002/ejoc.202401396","url":null,"abstract":"<div><div>Halogenated <em>gem</em>‐diboron reagents, as structurally unique <em>gem</em>‐diborylalkanes, are crucial in organic synthesis chemistry. Herein, we report a strategy with controlled synthesis of α‐mono‐ and α,α‐di‐halogenated ketones through nucleophilic addition reaction of halogenated diboromethanes with carboxylic acid esters. The substrate scope is broad and the nucleophilic addition reaction proceeds from a diverse range of carboxylic acid esters with bromo‐ or chloro‐diborylmethanes. Moreover, an intriguing heterocyclic compound has been serendipitously synthesized as well.</div></div>","PeriodicalId":167,"journal":{"name":"European Journal of Organic Chemistry","volume":"28 12","pages":"Article e202401396"},"PeriodicalIF":2.5,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142967983","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
Dehydrogenative Photoredox Catalyzed Synthesis of Indolyl Δ2‐Isoxazolines via a Formal C(sp3)−H Functionalization 脱氢光氧化还原催化合成吲哚酰Δ2 -异恶唑啉的正式C(sp3) -H功能化。
IF 2.5 3区 化学
European Journal of Organic Chemistry Pub Date : 2025-03-24 DOI: 10.1002/ejoc.202401369
Jonathan Da Luz , Farhaan Dobah , James A. Rossi‐Ashton , Richard J. Payne , William P. Unsworth , Wade F. Petersen
{"title":"Dehydrogenative Photoredox Catalyzed Synthesis of Indolyl Δ2‐Isoxazolines via a Formal C(sp3)−H Functionalization","authors":"Jonathan Da Luz ,&nbsp;Farhaan Dobah ,&nbsp;James A. Rossi‐Ashton ,&nbsp;Richard J. Payne ,&nbsp;William P. Unsworth ,&nbsp;Wade F. Petersen","doi":"10.1002/ejoc.202401369","DOIUrl":"10.1002/ejoc.202401369","url":null,"abstract":"<div><div>The discovery of a dehydrogenative photoredox catalyzed formal C(sp<sup>3</sup>)−H intramolecular cyclization of indolyl‐oximes to generate indolyl Δ<sup>2</sup>‐isoxazolines is reported. In contrast to the current state‐of‐the‐art, the reaction avoids the use of super stoichiometric chemical oxidants and high reaction temperatures and is proposed to operate via two sequential single electron oxidation events.</div></div>","PeriodicalId":167,"journal":{"name":"European Journal of Organic Chemistry","volume":"28 12","pages":"Article e202401369"},"PeriodicalIF":2.5,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ejoc.202401369","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142805190","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
Ruthenium‐Zeolite Catalyzed Dehydrative N‐Benzylation of Amides for the Construction of Macrolactams Under Continuous Flow 连续流条件下钌-沸石催化酰胺脱水n -苄基化制备大内酰胺
IF 2.5 3区 化学
European Journal of Organic Chemistry Pub Date : 2025-03-24 DOI: 10.1002/ejoc.202401365
Akash Bandu Jamdade , Gourishankar Bamayya Swami , Dashrat Vishambar Sutar , Padmavathy V. K. Nair , Boopathy Gnanaprakasam
{"title":"Ruthenium‐Zeolite Catalyzed Dehydrative N‐Benzylation of Amides for the Construction of Macrolactams Under Continuous Flow","authors":"Akash Bandu Jamdade ,&nbsp;Gourishankar Bamayya Swami ,&nbsp;Dashrat Vishambar Sutar ,&nbsp;Padmavathy V. K. Nair ,&nbsp;Boopathy Gnanaprakasam","doi":"10.1002/ejoc.202401365","DOIUrl":"10.1002/ejoc.202401365","url":null,"abstract":"<div><div>Continuous‐flow synthesis of acyclic amides and macrolactams has been demonstrated successfully via <em>N</em>‐benzylation of amides using a highly reusable heterogeneous Ru‐Zeolite as a catalyst, which gives only water as the byproduct. <em>N</em>‐Benzylation of acyclic amides furnished 30 <em>N</em>‐benzylated amides whereas intramolecular <em>N</em>‐benzylation with alcohols was well tolerated with 15 examples of macrolactams bearing 11‐ to 15‐membered rings. Notably, the scalability of this flow process has been demonstrated from milligrams to gram scale using the Ru‐Zeolite heterogeneous catalyst. Moreover, the reusability of the catalyst is exemplified by the 16 reaction cycles carried out with one time‐packed heterogeneous catalyst in the reactor bed.</div></div>","PeriodicalId":167,"journal":{"name":"European Journal of Organic Chemistry","volume":"28 12","pages":"Article e202401365"},"PeriodicalIF":2.5,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142937756","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
Earth-abundant metal complexes as catalysts for the dehydrogenative coupling of hydrosilanes and alcohols
IF 2.8 3区 化学
European Journal of Organic Chemistry Pub Date : 2025-03-24 DOI: 10.1002/ejoc.202500215
Manuel Iglesias, Ana Luque-Gómez
{"title":"Earth-abundant metal complexes as catalysts for the dehydrogenative coupling of hydrosilanes and alcohols","authors":"Manuel Iglesias, Ana Luque-Gómez","doi":"10.1002/ejoc.202500215","DOIUrl":"https://doi.org/10.1002/ejoc.202500215","url":null,"abstract":"The dehydrogenative coupling of hydrosilanes with alcohols or water is a fundamental transformation in organosilicon chemistry, enabling the synthesis of alkoxysilanes, silanols, and siloxanes—key materials for coatings and adhesives. Traditionally, these reactions have relied on catalysts based on platinum-group metals (PGMs), which are costly and scarce. The development of Earth-abundant metal (EAM) catalysts offers a sustainable and cost-effective alternative. This concept article highlights recent advancements in homogeneous EAM catalysis for these transformations, focusing on mechanistic insights, reactivity trends, and catalytic efficiencies. Catalysts based on manganese, iron, cobalt, copper, or zinc, are reshaping the field by offering efficient and selective processes for the synthesis of alkoxysilanes, silanols, and siloxanes. Moreover, a key feature of these catalytic systems is their ability to generate dihydrogen as a byproduct, offering potential applications in hydrogen storage and utilization. Despite the good performances of EAM catalysts in the hydrolysis or alcoholysis of silanes, challenges remain, including improving turnover numbers, substrate scope, and catalyst stability. Future developments integrating computational and experimental approaches will be key to optimizing these systems.","PeriodicalId":167,"journal":{"name":"European Journal of Organic Chemistry","volume":"33 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143678331","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
Catalyst‐Free Depolymerization of Aromatic and Aliphatic Polyesters Using Me3SiI Me3SiI无催化剂解聚芳香族和脂肪族聚酯
IF 2.5 3区 化学
European Journal of Organic Chemistry Pub Date : 2025-03-24 DOI: 10.1002/ejoc.202401379
Xin Liu , Marie Kobylarski , Jean‐Claude Berthet , Thibault Cantat
{"title":"Catalyst‐Free Depolymerization of Aromatic and Aliphatic Polyesters Using Me3SiI","authors":"Xin Liu ,&nbsp;Marie Kobylarski ,&nbsp;Jean‐Claude Berthet ,&nbsp;Thibault Cantat","doi":"10.1002/ejoc.202401379","DOIUrl":"10.1002/ejoc.202401379","url":null,"abstract":"<div><div>Iodotrimethylsilane (Me<sub>3</sub>SiI) promotes the depolymerization of a variety of alkyl and aromatic polyesters, such as poly(ethylene succinate) (<strong>PES</strong>), polylactic acid (<strong>PLA</strong>) as well as polyethylene and polybutylene terephthalates (<strong>PET</strong>, <strong>PBT</strong>), in the absence of catalyst. The monomer products, <em>e. g</em>. the silylester monomers and/or their value‐added derivatives, involving reactive iodo groups (alkyl iodides and acyl iodides), are obtained in high yields. The reaction outcomes are influenced by the solvent (<em>e. g</em>. CH<sub>2</sub>Cl<sub>2</sub>, CH<sub>3</sub>CN), temperature (25 °C to 200 °C) and the amount of Me<sub>3</sub>SiI. The depolymerization of <strong>PES</strong> gives the corresponding silylester which then cyclizes into succinic anhydride. With <strong>PLA</strong>, the ester CH<sub>3</sub>CH<sub>2</sub>CO<sub>2</sub>SiMe<sub>3</sub> and propionyl iodide (CH<sub>3</sub>CH<sub>2</sub>COI) are formed. They can be selectively obtained by adjusting the reaction conditions. As expected, the decomposition of aromatic polymers <strong>PET</strong> and <strong>PBT</strong> affords the bis(trimethylsilyl) terephthalate compound (1,4‐{CO<sub>2</sub>SiMe<sub>3</sub>}<sub>2</sub>C<sub>6</sub>H<sub>4</sub>). In the case of <strong>PET</strong>, the formation of the latter species is hampered by the I<sub>2</sub>, released by the decomposition of the generated diiodoethane. The initial addition of an iodine trap (1‐pentyne) avoids these side reactions. This work demonstrates that the length of the carbon chain linking the carboxylic acid units is a crucial factor influencing the ease of the reaction and the nature of the products.</div></div>","PeriodicalId":167,"journal":{"name":"European Journal of Organic Chemistry","volume":"28 12","pages":"Article e202401379"},"PeriodicalIF":2.5,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142988306","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
Reactions of Halogermylenes with NHCs: Selective Formation of Low Valent Ge(II) Species
IF 2.8 3区 化学
European Journal of Organic Chemistry Pub Date : 2025-03-24 DOI: 10.1002/ejoc.202500112
Kei Ota, Shotaro Ikoma, Tomohisa Okuda, Taisei Itakura, Tsukasa Nakahodo, Daisuke Hashizume, Tsukasa Matsuo
{"title":"Reactions of Halogermylenes with NHCs: Selective Formation of Low Valent Ge(II) Species","authors":"Kei Ota, Shotaro Ikoma, Tomohisa Okuda, Taisei Itakura, Tsukasa Nakahodo, Daisuke Hashizume, Tsukasa Matsuo","doi":"10.1002/ejoc.202500112","DOIUrl":"https://doi.org/10.1002/ejoc.202500112","url":null,"abstract":"The reactions of the Rind‐based 1,2‐dihalodigermenes, (Eind)BrGe=GeBr(Eind) (1a) and (EMind)ClGe=GeCl(EMind) (1b), with two types of N‐heterocyclic carbenes (NHCs) (Im‐iPr2Me2 and Im‐Me4) resulted in the formation of the halogermylene mono‐NHC adducts, (Im‐iPr2Me2)(Eind)GeBr (2a') and (Im‐iPr2Me2)(EMind)GeCl (2b'), and the germyliumylidene cation bis‐NHC adducts, [(Im‐Me4)2(Eind)Ge]+[Br–] (3a) and [(Im‐Me4)2(EMind)Ge]+[Cl–] (3b). The resulting Ge(II) species are stabilized by the bulky Rind groups and the strongly σ‐donating NHC ligands, whose structures were confirmed by a single‐crystal X‐ray diffraction (SC‐XRD) analysis. Based on DFT and QTAIM calculations of 2a' and the cationic part of 3a, it was concluded that while the Ge–C(Eind) and Ge–C(NHC) bonds exhibit distinct differences in their degrees of polarization, all the Ge–C bonds display a partially polarized covalent character. Both reaction energy calculations and experimental studies suggested the potential liberation of an NHC ligand from the germyliumylidene cation bis‐NHC adducts, leading to the exchange of the NHC ligands. The formation mechanism of 3a from 1a and two NHC molecules via (Im‐Me4)(Eind)GeBr (2a) is discussed based on DFT calculations.","PeriodicalId":167,"journal":{"name":"European Journal of Organic Chemistry","volume":"37 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143677598","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
Chiral Thiourea Catalyzed Enantioselective Cascade Synthesis of 2,3‐Dihydrobenzofurans
IF 2.5 3区 化学
European Journal of Organic Chemistry Pub Date : 2025-03-24 DOI: 10.1002/ejoc.202401391
Akanksha Kumari , Anshul Jain , Dr. Nirmal K. Rana
{"title":"Chiral Thiourea Catalyzed Enantioselective Cascade Synthesis of 2,3‐Dihydrobenzofurans","authors":"Akanksha Kumari ,&nbsp;Anshul Jain ,&nbsp;Dr. Nirmal K. Rana","doi":"10.1002/ejoc.202401391","DOIUrl":"10.1002/ejoc.202401391","url":null,"abstract":"<div><div>We established an efficient asymmetric cascade pathway for the construction of <em>trans</em>‐2,3‐dihydrobenzofurans. This reaction proceeds via a Michael addition followed by an oxa‐substitution, employing <em>in‐situ</em> generated pyridinium ylide and <em>ortho</em>‐hydroxy chalcone derivatives in the presence of a chiral thiourea catalyst at ambient temperature. This method accomplishes good to excellent yields and adequate stereoselectivity, with up to 84 % ee and &gt;20 : 1 diastereomeric ratio. A key advantage of this cascade [4+1] annulation approach is its ability to construct chiral DHBs under mild conditions with notable yields and selectivity.</div></div>","PeriodicalId":167,"journal":{"name":"European Journal of Organic Chemistry","volume":"28 12","pages":"Article e202401391"},"PeriodicalIF":2.5,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143027004","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
Mechanochemical Synthesis of 5‐Amino‐4‐Cyanoxazoles
IF 2.8 3区 化学
European Journal of Organic Chemistry Pub Date : 2025-03-24 DOI: 10.1002/ejoc.202500145
Danylo Merzhyievskyi, Oleh V. Shablykin, Tatsiana Jarg, Volodymyr S. Brovarets, Riina Aav, Dzmitry Kananovich
{"title":"Mechanochemical Synthesis of 5‐Amino‐4‐Cyanoxazoles","authors":"Danylo Merzhyievskyi, Oleh V. Shablykin, Tatsiana Jarg, Volodymyr S. Brovarets, Riina Aav, Dzmitry Kananovich","doi":"10.1002/ejoc.202500145","DOIUrl":"https://doi.org/10.1002/ejoc.202500145","url":null,"abstract":"A mechanochemical methodology for the preparation of 5‐amino‐4‐cyanoxazoles through the reaction of 2‐amido‐3,3‐dichloroacrylonitriles with primary or secondary aliphatic amines (or their respective salts) in the presence of dipotassium phosphate is reported. The process is carried out by processing the mixture of starting materials in a mixer mill, with ethanol used as a liquid‐assisted grinding (LAG) additive. Dipotassium phosphate serves as a cost‐efficient and non‐toxic inorganic base, ensuring 100% carbon economy of the process. The reaction produces the corresponding oxazole products with up to 97% yield in just 10 minutes. However, preparative scope of the method is restricted to highly nucleophilic and sterically unobstructed primary and secondary aliphatic amines. Aromatic amines display low reactivity at room temperature. For instance, indoline achieves only 43% conversion to its oxazole product after 3 hours.","PeriodicalId":167,"journal":{"name":"European Journal of Organic Chemistry","volume":"9 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143677507","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
Latent Ruthenium Complexes Supported by Two N‐Heterocyclic Carbene (NHC) Ligands, Synthesis and Catalytic Activity with Distinctive Activation
IF 2.8 3区 化学
European Journal of Organic Chemistry Pub Date : 2025-03-24 DOI: 10.1002/ejoc.202500284
N. Gabriel Lemcoff, Anna Vaisman, Hosein Tafazolian, Diana Stoianova, Jonathan Goldberg, Kristina Goulinian, Angelino Doppiu, Adam Johns
{"title":"Latent Ruthenium Complexes Supported by Two N‐Heterocyclic Carbene (NHC) Ligands, Synthesis and Catalytic Activity with Distinctive Activation","authors":"N. Gabriel Lemcoff, Anna Vaisman, Hosein Tafazolian, Diana Stoianova, Jonathan Goldberg, Kristina Goulinian, Angelino Doppiu, Adam Johns","doi":"10.1002/ejoc.202500284","DOIUrl":"https://doi.org/10.1002/ejoc.202500284","url":null,"abstract":"Novel bis(NHC) ruthenium complexes of the form (NHC1)(NHC2)Ru(=CRR')Cl2 (where NHC represents N‐heterocyclic carbene ligands and CRR' denotes Ph‐indenylidene or benzylidene moieties) were prepared from second‐ and third‐generation Grubbs catalysts. These complexes exhibited thermal latency in ring‐closing metathesis (RCM), cross‐metathesis (CM), and several ring‐opening metathesis polymerization (ROMP) reactions. The species best activated by heat included either IPr or SIPr as an NHC ligand, highlighting how bulky isopropyl substituents enhance NHC lability. Most interestingly, UV‐C (255 nm) irradiation readily activated two complexes that contained benzylidene ligands for the ROMP of cyclooctadiene, providing a unique opportunity for the efficient UV‐C activation of olefin metathesis catalysts. Beyond their special utility in UV‐C‐initiated ROMP, because of their high robustness, these complexes showed promising activity for challenging high‐temperature CM and RCM reactions of alkenyl‐nitrile substrates.","PeriodicalId":167,"journal":{"name":"European Journal of Organic Chemistry","volume":"28 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143677599","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
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