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Recent Developments in Ultrasound-Promoted Aqueous-Mediated Greener Synthesis of Biologically Vital Indole Derivatives 超声促进水介导的吲哚衍生物绿色合成研究进展
IF 2.5
SynOpen Pub Date : 2023-01-05 DOI: 10.1055/a-2081-9249
Kanaram Choupra, Ashish Kumar Aheer, A. Dandia, Meenakshi Jain, Amit Sharma
{"title":"Recent Developments in Ultrasound-Promoted Aqueous-Mediated Greener Synthesis of Biologically Vital Indole Derivatives","authors":"Kanaram Choupra, Ashish Kumar Aheer, A. Dandia, Meenakshi Jain, Amit Sharma","doi":"10.1055/a-2081-9249","DOIUrl":"https://doi.org/10.1055/a-2081-9249","url":null,"abstract":"The extensive usefulness of N-heterocycles as potent bioactive motifs has attracted researchers to expand newer methods for their efficient synthesis. Particularly, indoles are widely known for their prevalent pharmacological properties. Green chemistry provides various facile synthetic tools viz. alternative energy resources, nonconventional solvents, nano-catalysts, etc. Modern strategies of using ultrasound waves as alternative energy resource in organic synthesis lead to the development of environment friendly and cost effective techniques. The chemical and mechanical effects of ultrasound waves impart significant enhancement in both stoichiometric and catalytic reactions. The exclusive physicochemical properties of water offer its widespread utility for carrying out organic reactions in it. The aim of this review article is to provide an inclusive summary of combined use of ultrasound and aqueous media for the facile synthesis of biologically vital indole derivatives.","PeriodicalId":22135,"journal":{"name":"SynOpen","volume":"07 1","pages":"243 - 257"},"PeriodicalIF":2.5,"publicationDate":"2023-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43994769","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
Ethyl Diazoacetate 重氮乙酸乙酯
IF 2.5
SynOpen Pub Date : 2023-01-02 DOI: 10.1055/a-2038-6055
G. Aquino, F. Silva-Jr, S. Ferreira
{"title":"Ethyl Diazoacetate","authors":"G. Aquino, F. Silva-Jr, S. Ferreira","doi":"10.1055/a-2038-6055","DOIUrl":"https://doi.org/10.1055/a-2038-6055","url":null,"abstract":"Ethyl diazoacetate (EDA) is a very important reagent for different types of organic reactions. It can be used to synthesize cyclopropanes, cyclopropenes, triazoles and pyrazolines, and also for cycloaddition reactions, reactions involving transition metals, olefinations of aldehydes, when it is necessary to introduce an ester group in the molecule scaffold, and in processes like continuous flow methods. In summary, EDA is a first-choice reagent for many organic chemists in their daily reactions.","PeriodicalId":22135,"journal":{"name":"SynOpen","volume":"07 1","pages":"110 - 113"},"PeriodicalIF":2.5,"publicationDate":"2023-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49654945","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
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":"07 1","pages":"114 - 116"},"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":"07 1","pages":"142 - 144"},"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":"07 1","pages":"121 - 129"},"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":"07 1","pages":"58 - 64"},"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":"07 1","pages":"65 - 68"},"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":"07 1","pages":"46 - 57"},"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":"07 1","pages":"43 - 45"},"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":"07 1","pages":"8 - 16"},"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
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