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Nickel-Catalyzed Heck Reaction 镍催化Heck反应
IF 2.5
SynOpen Pub Date : 2022-12-30 DOI: 10.1055/s-0042-1751432
P. Gahlot, Kavita Mittal
{"title":"Nickel-Catalyzed Heck Reaction","authors":"P. Gahlot, Kavita Mittal","doi":"10.1055/s-0042-1751432","DOIUrl":"https://doi.org/10.1055/s-0042-1751432","url":null,"abstract":"Bai research group 19 constructed three dimensional Ni carbon nanofibers (Ni/CNFs) and explored it as heterogeneous catalyst for Heck coupling reaction. Iodobenzene and n -butyl acrylate reacted successfully taking small amount of catalyst Ni/CNFs and Et 3 N as base in N -methylpyrrolidone solvent to furnish butyl cinnamate with good product selectivity","PeriodicalId":22135,"journal":{"name":"SynOpen","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42779809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Zinc Oxide (ZnO): an Amphoteric Metal Oxide with Dehydrogenating Activity 氧化锌:一种具有脱氢活性的两性金属氧化物
IF 2.5
SynOpen Pub Date : 2022-12-27 DOI: 10.1055/a-2063-4007
R. Ballesteros-Garrido, Rosa Adam
{"title":"Zinc Oxide (ZnO): an Amphoteric Metal Oxide with Dehydrogenating Activity","authors":"R. Ballesteros-Garrido, Rosa Adam","doi":"10.1055/a-2063-4007","DOIUrl":"https://doi.org/10.1055/a-2063-4007","url":null,"abstract":"Zinc oxide presents a remarkable activity as catalyst or co-catalyst in different dehydrogenative processes. Borrowing hydrogen reactions as well as acceptorless dehydrogenative condensations have been reported with ZnO, affording value added compounds in fine and bulk chemistry.","PeriodicalId":22135,"journal":{"name":"SynOpen","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41953197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
CN-Doped Cobalt Oxide Composite: An Economic and Reusable Catalyst with Multitasking Catalytic Capability for Alkyne and Nitrile Hydrations and Nitro Reductions CN掺杂的氧化钴复合材料：一种经济且可重复使用的催化剂，对炔烃、腈的水合和硝基还原具有多任务催化能力
IF 2.5
SynOpen Pub Date : 2022-12-20 DOI: 10.1055/a-2025-2759
A. K. Srivastava, Himanshu Khandaka, R. Joshi
{"title":"CN-Doped Cobalt Oxide Composite: An Economic and Reusable Catalyst with Multitasking Catalytic Capability for Alkyne and Nitrile Hydrations and Nitro Reductions","authors":"A. K. Srivastava, Himanshu Khandaka, R. Joshi","doi":"10.1055/a-2025-2759","DOIUrl":"https://doi.org/10.1055/a-2025-2759","url":null,"abstract":"A heterogeneous CoOCN composite, synthesized via a one-pot reaction of [Co(NO3)2] and urea at 500 °C in muffle furnace. The composite was fully characterized by the FTIR, Raman, powder XRD and XPS techniques. The catalyst was found to be efficient for the hydrations of aryl alkynes and nitriles under aerobic conditions. Apart of that, the catalyst exhibits high catalytic performance for the reduction of nitroarenes under the inert gas free conditions. This multitasking CoOCN was found to be highly significant for the all derivatives of nitrobenzene, alkynes and nitriles as good to excellent yields were obtained. The catalyst was recovered quantitatively from the reaction mixture by simple filtration and consequently reused for seven consecutive cycles in all reactions without significant loss of catalytic activity. Hence, the synthesized CN doped CoOCN composite worked as multitasking catalyst for various value added organic transformations, and it is highly economical and reusable upto seven catalytic cycles without any activation, even the last cycle was producing a reasonable yields up to 48-50%.","PeriodicalId":22135,"journal":{"name":"SynOpen","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2022-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46415615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Palladium-Mediated Reductive Heck Cyclization for the Synthesis of Fused Retinoid Derivatives 钯介导的还原Heck环化反应合成熔融类维甲酸衍生物
IF 2.5
SynOpen Pub Date : 2022-12-17 DOI: 10.1055/a-2022-3227
Trisha Mitra, S. Joardar, S. Chakravorty, Manoj Majumdar, M. Kundu, B. Roy
{"title":"Palladium-Mediated Reductive Heck Cyclization for the Synthesis of Fused Retinoid Derivatives","authors":"Trisha Mitra, S. Joardar, S. Chakravorty, Manoj Majumdar, M. Kundu, B. Roy","doi":"10.1055/a-2022-3227","DOIUrl":"https://doi.org/10.1055/a-2022-3227","url":null,"abstract":"Linearly fused Retinoids derivatives have been synthesized via a straightforward pathway using palladium-catalyzed reductive Heck cyclization strategy. The synthesis involved a four step linear approach utilizing iodination, sulfonylation or benzylation or esterfication, palladium- catalyzed Sonogashira cross-coupling and palladium mediated reductive Heck cyclization.","PeriodicalId":22135,"journal":{"name":"SynOpen","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2022-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46011844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Langlois Reagent: An Efficient Trifluoromethylation Reagent 朗格卢瓦试剂:一种高效三氟甲基化试剂
IF 2.5
SynOpen Pub Date : 2022-12-15 DOI: 10.1055/a-2024-1382
K. Anusha, Megha Mahesh, S. Shikha, T. Rangarajan, Sharda Pasricha
{"title":"Langlois Reagent: An Efficient Trifluoromethylation Reagent","authors":"K. Anusha, Megha Mahesh, S. Shikha, T. Rangarajan, Sharda Pasricha","doi":"10.1055/a-2024-1382","DOIUrl":"https://doi.org/10.1055/a-2024-1382","url":null,"abstract":"Abstract Keywords:Langlois’ reagent, trifluoromethylation, free radical, fluoroorganic synthesis, sodium trifluoromethane sulfinate or sodium triflinate","PeriodicalId":22135,"journal":{"name":"SynOpen","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2022-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47083023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Frustrated Lewis Pair Catalyzed Reactions 受挫刘易斯对催化反应
IF 2.5
SynOpen Pub Date : 2022-12-14 DOI: 10.1055/a-2005-5443
Rundong Zhou, Zoleykha Tavandashti, J. Paradies
{"title":"Frustrated Lewis Pair Catalyzed Reactions","authors":"Rundong Zhou, Zoleykha Tavandashti, J. Paradies","doi":"10.1055/a-2005-5443","DOIUrl":"https://doi.org/10.1055/a-2005-5443","url":null,"abstract":"In recent years, frustrated Lewis pairs have been widely used in small molecules activation and catalytic transformations. This graphic review is aimed to provide the fundamental understanding of frustrated Lewis pair reactivity and the exploitation thereof in catalytic reactions.","PeriodicalId":22135,"journal":{"name":"SynOpen","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2022-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44278826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Solid-Supported Heterogenized Palladium Nanoparticles: Propitious Vehicles for Sonogashira Cross-Coupling Reaction 固体负载多相化钯纳米颗粒:Sonogashira交叉偶联反应的有利载体
IF 2.5
SynOpen Pub Date : 2022-12-14 DOI: 10.1055/a-2011-9319
Abhay Srivastava, Nishita Avasthi, sachid Anand, D. Yadav, T. Rangarajan, Sharda Pasricha
{"title":"Solid-Supported Heterogenized Palladium Nanoparticles: Propitious Vehicles for Sonogashira Cross-Coupling Reaction","authors":"Abhay Srivastava, Nishita Avasthi, sachid Anand, D. Yadav, T. Rangarajan, Sharda Pasricha","doi":"10.1055/a-2011-9319","DOIUrl":"https://doi.org/10.1055/a-2011-9319","url":null,"abstract":"Abstract Keywords: Palladium, Sonogashira, Heterogeneous catalysis, supported nanoparticles","PeriodicalId":22135,"journal":{"name":"SynOpen","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2022-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42359512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Selective Syntheses of Coumarin and Benzofuran Derivatives Using Phenols and α-Methoxy-β-ketoesters 酚类化合物和α-甲氧基-β-酮酯类化合物选择性合成香豆素和苯并呋喃衍生物
IF 2.5
SynOpen Pub Date : 2022-12-11 DOI: 10.1055/s-0042-1751408
R. Miyata, Takashi Shigeta, S. Kumazawa, M. Egi
{"title":"Selective Syntheses of Coumarin and Benzofuran Derivatives Using Phenols and α-Methoxy-β-ketoesters","authors":"R. Miyata, Takashi Shigeta, S. Kumazawa, M. Egi","doi":"10.1055/s-0042-1751408","DOIUrl":"https://doi.org/10.1055/s-0042-1751408","url":null,"abstract":"Selective syntheses of coumarin and benzofuran derivatives were achieved via HClO4-mediated intermolecular annulation using phenols and α-methoxy-β-ketoesters. Coumarins are formed under dehydrated conditions, whereas benzofurans are formed in the presence of water. In the synthetic process of benzofurans, α-methoxy-β-ketoesters are converted into α-methoxyacetophenones, and the methoxy group is an important element in the intermolecular annulation.","PeriodicalId":22135,"journal":{"name":"SynOpen","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2022-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47941007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Click-Type Synthesis of Homoconjugated Push–Pull Chromophores: Computational Investigation of Optical and Nonlinear Optical (NLO) Properties 点击式合成同共轭推挽发色团：光学和非线性光学（NLO）性质的计算研究
IF 2.5
SynOpen Pub Date : 2022-12-07 DOI: 10.1055/a-2004-6344
Fevzi Can Inyurt, F. Mammadova, Çağatay Dengiz
{"title":"Click-Type Synthesis of Homoconjugated Push–Pull Chromophores: Computational Investigation of Optical and Nonlinear Optical (NLO) Properties","authors":"Fevzi Can Inyurt, F. Mammadova, Çağatay Dengiz","doi":"10.1055/a-2004-6344","DOIUrl":"https://doi.org/10.1055/a-2004-6344","url":null,"abstract":"Homoconjugated push–pull chromophores were obtained by an efficient, click-type formal [2+2] cycloadditions. With these short synthetic transformations, complex chromophore structures were achieved in a single step without any by-product formation. Significant second-order optical nonlinearities have been calculated for the synthesized compounds.","PeriodicalId":22135,"journal":{"name":"SynOpen","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2022-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45798614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Photochemical Synthesis of Pyrazolines from Tetrazoles in Flow 四氮唑光化学合成吡唑啉的研究
IF 2.5
SynOpen Pub Date : 2022-11-24 DOI: 10.1055/a-1995-1859
A. Burke, Silvia Spiccio, M. D. Di Filippo, M. Baumann
{"title":"Photochemical Synthesis of Pyrazolines from Tetrazoles in Flow","authors":"A. Burke, Silvia Spiccio, M. D. Di Filippo, M. Baumann","doi":"10.1055/a-1995-1859","DOIUrl":"https://doi.org/10.1055/a-1995-1859","url":null,"abstract":"Pyrazolines and their pyrazole congeners are important heterocyclic building blocks with numerous applications in the fine chemical industries. However, traditional routes towards these entities are based on multistep syntheses generating substantial amounts of chemical waste. Here we report an alternative approach using UV-light to convert tetrazoles to pyrazolines via a reagent-free photo-click strategy. This route generates nitrile imine dipoles in situ that are trapped with different dipolarophiles rendering a selection of \u0000these heterocyclic targets in high chemical yields. A continuous flow method is ultimately realized that generates multi-gram quantities of product in a safe and readily scalable manner thus demonstrating the value of this photochemical approach for future exploitations in industry.","PeriodicalId":22135,"journal":{"name":"SynOpen","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2022-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41701632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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