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Asian Journal of Organic Chemistry最新文献

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Synthesis of N‐Phenylazo (Triazine) Derivatives of 6‐Aminouracil Using Diazonium Salt Under Catalyst‐Free Condition
IF 2.8 4区 化学
Asian Journal of Organic Chemistry Pub Date : 2025-01-01 DOI: 10.1002/ajoc.202400409
Shikha Pandey , Arsala Kamal , Ambuj Kumar Kushwaha , Dr. Sundaram Singh
{"title":"Synthesis of N‐Phenylazo (Triazine) Derivatives of 6‐Aminouracil Using Diazonium Salt Under Catalyst‐Free Condition","authors":"Shikha Pandey ,&nbsp;Arsala Kamal ,&nbsp;Ambuj Kumar Kushwaha ,&nbsp;Dr. Sundaram Singh","doi":"10.1002/ajoc.202400409","DOIUrl":"10.1002/ajoc.202400409","url":null,"abstract":"<div><div>In the current study, for the first time, N‐phenylazo (triazine) derivatives of 6‐aminouracil compounds were produced at room temperature under catalyst‐free conditions in pyridine using an easy, efficient, and green process. The main advantages of this approach are that it doesn't require a catalyst, is inexpensive, eco‐friendly, non‐toxic, and simple to handle. This technique shows a broad range of substrate compatibility for uracil compounds and diazonium salts.</div></div>","PeriodicalId":130,"journal":{"name":"Asian Journal of Organic Chemistry","volume":"14 1","pages":"Article e202400409"},"PeriodicalIF":2.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143116239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Palladium‐Catalyzed Dehydrogenation Cross‐Coupling Reactions of Hydrosilanes: Facile Synthesis of Silanols and Silyl Ethers
IF 2.8 4区 化学
Asian Journal of Organic Chemistry Pub Date : 2025-01-01 DOI: 10.1002/ajoc.202400471
Lianji Zhang , Yujuan Wu , Cuiping Wang , Yuhui Zhao , Wanguo Wei , Zhiqiang Zhang
{"title":"Palladium‐Catalyzed Dehydrogenation Cross‐Coupling Reactions of Hydrosilanes: Facile Synthesis of Silanols and Silyl Ethers","authors":"Lianji Zhang ,&nbsp;Yujuan Wu ,&nbsp;Cuiping Wang ,&nbsp;Yuhui Zhao ,&nbsp;Wanguo Wei ,&nbsp;Zhiqiang Zhang","doi":"10.1002/ajoc.202400471","DOIUrl":"10.1002/ajoc.202400471","url":null,"abstract":"<div><div>A palladium‐catalyzed dehydrogenative cross‐coupling reactions between silanes and oxygen‐containing functional groups (water, alcohols, phenols) to generate the corresponding silanols, monosilane ethers, and disilane ethers directly in moderate to high yields. This strategy does not rely on any additional oxidizing agents or proton reductants. The possible mechanisms for this transformation are also proposed.</div></div>","PeriodicalId":130,"journal":{"name":"Asian Journal of Organic Chemistry","volume":"14 1","pages":"Article e202400471"},"PeriodicalIF":2.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143117390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Bioassay‐Guided Extraction and Isolation of Natural Herbicides from Dried Zanthoxylum limonella Alston Fruits
IF 2.8 4区 化学
Asian Journal of Organic Chemistry Pub Date : 2025-01-01 DOI: 10.1002/ajoc.202400317
Warot Chotpatiwetchkul , Patchanee Charoenying , Montinee Teerarak , Jatuporn Meesin , Nathjanan Jongkon , Nawasit Chotsaeng , Chamroon Laosinwattana
{"title":"Bioassay‐Guided Extraction and Isolation of Natural Herbicides from Dried Zanthoxylum limonella Alston Fruits","authors":"Warot Chotpatiwetchkul ,&nbsp;Patchanee Charoenying ,&nbsp;Montinee Teerarak ,&nbsp;Jatuporn Meesin ,&nbsp;Nathjanan Jongkon ,&nbsp;Nawasit Chotsaeng ,&nbsp;Chamroon Laosinwattana","doi":"10.1002/ajoc.202400317","DOIUrl":"10.1002/ajoc.202400317","url":null,"abstract":"<div><div>Weeds are problematic plant species around the world. Various strategies exist for controlling weeds, but chemical treatment remains the preferred method, particularly when using natural substances. In this research, a crude aqueous‐methanol extract from dried <em>Zanthoxylum limonella</em> fruits was acid‐base partitioned into four fractions: neutral extract (NE), acid extract (AE), basic extract (BE), and aqueous extract (AQ). These fractions were further separated into seventeen subfractions: NEF1 to NEF7, AEF1 to AEF5, and BEF1 to BEF5, which were then tested for herbicidal activity against the growth of Chinese amaranth (<em>Amaranthus tricolor</em>) and barnyard grass (<em>Echinochloa crus‐galli</em>). Active subfractions were isolated via column chromatography and identified using spectroscopic methods, yielding seven active compounds: xanthoxyline (<strong>1</strong>), tambulin (<strong>2</strong>), atanine (<strong>3</strong>), prudomestin (<strong>4</strong>), skimmianine (<strong>5</strong>), <em>p</em>‐methoxybenzoic acid (<strong>6</strong>), and methyl caffeate (<strong>7</strong>). Compounds <strong>2–7</strong> had not been previously reported in <em>Z. limonella</em>. Xanthoxyline (<strong>1</strong>) was identified as the most potent botanical herbicide, fully inhibiting seed germination of Chinese amaranth and barnyard grass. This compound also decreased seed imbibition and α‐amylase activity in both species. Molecular docking studies on the α‐amylase enzyme (PDB ID: 1BG9) revealed that the aromatic, hydroxy, and carbonyl groups of xanthoxyline (<strong>1</strong>) interact with the enzyme's active sites.</div></div>","PeriodicalId":130,"journal":{"name":"Asian Journal of Organic Chemistry","volume":"14 1","pages":"Article e202400317"},"PeriodicalIF":2.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143119175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Front Cover: First Total Synthesis of Inaoside A (Asian J. Org. Chem. 12/2024) 封面：伊奈苷 A 的首次全合成（《亚洲有机化学杂志》12/2024 期）
IF 2.8 4区 化学
Asian Journal of Organic Chemistry Pub Date : 2024-12-13 DOI: 10.1002/ajoc.202481201
Tomoya Takao, Atsushi Kawamura, Hidefumi Makabe
{"title":"Front Cover: First Total Synthesis of Inaoside A (Asian J. Org. Chem. 12/2024)","authors":"Tomoya Takao,&nbsp;Atsushi Kawamura,&nbsp;Hidefumi Makabe","doi":"10.1002/ajoc.202481201","DOIUrl":"https://doi.org/10.1002/ajoc.202481201","url":null,"abstract":"<p>In article number e202400547, Tomoya Takao, Atsushi Kawamura, and Hidefumi Makabe accomplished the first total synthesis of inaoside A, isolated from the edible mushroom <i>Laetiporus cremeiporus</i>, using α-selective Schmidt glycosylation of the easily prepared 2,3,5-tri-TBS-protected ribofuranosyl trichloroacetimidate as a key step. In this cover picture, the creatures of <i>L. cremeiours</i> are trying to build inaoside by guiding the aglycon to the α-face of the ribose derivative.\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure>\u0000 </p>","PeriodicalId":130,"journal":{"name":"Asian Journal of Organic Chemistry","volume":"13 12","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ajoc.202481201","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142861224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Site‐Selective Synthetic Modifications of the Cinchona Alkaloids 金鸡纳生物碱的位点选择性合成修饰
IF 2.8 4区 化学
Asian Journal of Organic Chemistry Pub Date : 2024-12-01 DOI: 10.1002/ajoc.202400397
Finlay P. Player , Daniel J. Foley
{"title":"Site‐Selective Synthetic Modifications of the Cinchona Alkaloids","authors":"Finlay P. Player ,&nbsp;Daniel J. Foley","doi":"10.1002/ajoc.202400397","DOIUrl":"10.1002/ajoc.202400397","url":null,"abstract":"<div><div>The natural product quinine has been known to humankind for centuries, and in that time has played a pivotal role in the treatment of malaria. Quinine, and the related cinchona alkaloids, have seen widespread contemporary use across chemical and biological disciplines, owing in part to the plethora of functional groups and stereochemical information contained within their scaffold. This review focuses on site‐selective synthetic modifications of the cinchona alkaloids. Our comparative analysis may act as a ‘user manual’ for the selective functionalisation of the cinchona alkaloids, and aims to promote consideration of remarkable and lesser‐understood aspects of cinchona chemistry.</div></div>","PeriodicalId":130,"journal":{"name":"Asian Journal of Organic Chemistry","volume":"13 12","pages":"Article e202400397"},"PeriodicalIF":2.8,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142860655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Conjugate Addition of 3‐Aryl Oxindoles to In Situ Generated o–Quinone Methides Without Essential Electronic or Steric Groups 3 芳基羰基吲哚与原位生成的邻喹酮甲酰胺的共轭加成，不含基本电子或立体基团
IF 2.8 4区 化学
Asian Journal of Organic Chemistry Pub Date : 2024-12-01 DOI: 10.1002/ajoc.202400370
Liu Song
{"title":"Conjugate Addition of 3‐Aryl Oxindoles to In Situ Generated o–Quinone Methides Without Essential Electronic or Steric Groups","authors":"Liu Song","doi":"10.1002/ajoc.202400370","DOIUrl":"10.1002/ajoc.202400370","url":null,"abstract":"<div><div>Herein an efficient method for <em>in situ</em> generated <em>o</em>–quinone methides without essential electronic or steric groups at the exocyclic methylene or on six‐membered ring was established. The method relies on acetylation of salicylylols and subsequently base promoted 1,4‐elimination. The <em>in situ</em> generated <em>o</em>–quinone methides could be undergoing conjugate addition with 3‐aryl oxindoles in one‐pot reaction system, which provided 3,3‐disubstituted oxindoles bearing a quaternary stereocenter in good yields (up to 99 %).</div></div>","PeriodicalId":130,"journal":{"name":"Asian Journal of Organic Chemistry","volume":"13 12","pages":"Article e202400370"},"PeriodicalIF":2.8,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142860748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Microwave‐Assisted Synthetic Pathways of Pyrrole: A Comprehensive Review 微波辅助吡咯合成途径综述
IF 2.8 4区 化学
Asian Journal of Organic Chemistry Pub Date : 2024-12-01 DOI: 10.1002/ajoc.202400401
Ritika Yadav , Mohit Sanduja , Vinod Kumar , Kirti Sharma , Sameer Khan , Kapil Kumar
{"title":"Microwave‐Assisted Synthetic Pathways of Pyrrole: A Comprehensive Review","authors":"Ritika Yadav ,&nbsp;Mohit Sanduja ,&nbsp;Vinod Kumar ,&nbsp;Kirti Sharma ,&nbsp;Sameer Khan ,&nbsp;Kapil Kumar","doi":"10.1002/ajoc.202400401","DOIUrl":"10.1002/ajoc.202400401","url":null,"abstract":"<div><div>Microwave synthesis is a sustainable and eco‐friendly method for producing novel organic compounds, offering faster reactions, higher yields, and improved purity compared to traditional techniques. Efficiency is increased by the uniform heating caused by microwave radiation, especially for the synthesis of heterocyclic compound and their derivatives. Owing to have important biological and therapeutic qualities, a number of microwave‐assisted synthetic methods of pyrroles have been developed that produce better results than the conventional reported method. In view of this, the present review emphasizes solvent‐free and catalyst‐free methods for the microwave‐assisted synthesis of pyrrole and its fusion with other heterocycles such as furan, pyridine, beta‐lactam, and indole. A comparison between traditional and microwave‐assisted techniques is given in terms of reagents, covering yield, waste minimization, solvents, and catalysts.</div></div>","PeriodicalId":130,"journal":{"name":"Asian Journal of Organic Chemistry","volume":"13 12","pages":"Article e202400401"},"PeriodicalIF":2.8,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142861165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
O‐Phthalaldehyde: A Versatile Chemical with its Roles and Future Perspectives 邻苯二醛：一种用途广泛的化学品及其作用和未来展望
IF 2.8 4区 化学
Asian Journal of Organic Chemistry Pub Date : 2024-12-01 DOI: 10.1002/ajoc.202400383
Arunava Misra , Sudipta Mondal , Mohabul Alam Mondal
{"title":"O‐Phthalaldehyde: A Versatile Chemical with its Roles and Future Perspectives","authors":"Arunava Misra ,&nbsp;Sudipta Mondal ,&nbsp;Mohabul Alam Mondal","doi":"10.1002/ajoc.202400383","DOIUrl":"10.1002/ajoc.202400383","url":null,"abstract":"<div><div><em>Ortho</em>‐Phthaldehyde (OPA) is one of the isomers of benzenedicarbaldehydes. It exhibits distinctive chemical properties stemming from the closely attached dicarbaldehyde groups. Since its development, it has been widely employed as a potent disinfectant, owing to its inherent antimicrobial properties. OPA has the ability to form a fluorescent product with primary amines, making it useful for detecting and estimating various biogenic amines, peptides, and proteins in bodily fluids. Moreover, the combination of thiol and amine with OPA produces a more sensitive fluorogenic compound, significantly enhancing the sensitivity and specificity of OPA‐based analytical techniques. This review summarizes recent developments in biochemical analysis using OPA. It also discusses key achievements in the development of photoactive polymers. Additionally, it covers the use of OPA as a synthetic precursor to achieve small molecules with unique structures that have become increasingly important in various fields of scientific research from 2004.</div></div>","PeriodicalId":130,"journal":{"name":"Asian Journal of Organic Chemistry","volume":"13 12","pages":"Article e202400383"},"PeriodicalIF":2.8,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142862096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
“Novel Metal‐Free Porphyrin with Ionic Liquid and Sulphonic Acid Moieties for Visible Light Assisted Photocatalytic C−N Coupling of Heterocyclic Compounds with Aryl Halides” "具有离子液体和磺酸分子的新型无金属卟啉，用于可见光辅助的杂环化合物与芳基卤化物的 C-N 光催化偶联反应
IF 2.8 4区 化学
Asian Journal of Organic Chemistry Pub Date : 2024-12-01 DOI: 10.1002/ajoc.202400337
Piyush Radheshyam Yadav , Pundlik Rambhau Bhagat
{"title":"“Novel Metal‐Free Porphyrin with Ionic Liquid and Sulphonic Acid Moieties for Visible Light Assisted Photocatalytic C−N Coupling of Heterocyclic Compounds with Aryl Halides”","authors":"Piyush Radheshyam Yadav ,&nbsp;Pundlik Rambhau Bhagat","doi":"10.1002/ajoc.202400337","DOIUrl":"10.1002/ajoc.202400337","url":null,"abstract":"<div><div>Metal‐free Buchwald‐Hartwig type photocatalytic approach for N‐substitution of 1,2,4‐triazole at normal temperature was explored for the first‐time using novel imidazolium based Brønsted acid functionalized porphyrin (ImBAFPc). The energy band gap and Hammett acidity were determined by UV‐Vis spectrophotometer. The energy band gap, 1.06 eV supported absorption of radiation in the visible region. The N‐arylation of 1,2,4‐triazole with various Ar−X was achieved in a home‐made photoreactor by heterogeneous, recyclable ImBAFPc photocatalyst under irradiation of 5 W LED with good yields. The protocol tolerated electron donating and attracting Ar−X, including inactivated chlorobenzene, affording the arylated triazole with admirable yields. under ambient photocatalytic conditions.</div></div>","PeriodicalId":130,"journal":{"name":"Asian Journal of Organic Chemistry","volume":"13 12","pages":"Article e202400337"},"PeriodicalIF":2.8,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142861275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
TMSOTf‐Catalyzed Annulation of Ynamides with Alkynyl Sulfoxides to Construct Substituted Maleimides TMSOTf 催化亚酰胺与炔基硫醚的环化反应，构建取代的马来酰亚胺类化合物
IF 2.8 4区 化学
Asian Journal of Organic Chemistry Pub Date : 2024-12-01 DOI: 10.1002/ajoc.202400416
Nanfang Wang , Wozheng Fang , Yu Yan , Nan Sun , Junbiao Chang , Xiao‐Na Wang
{"title":"TMSOTf‐Catalyzed Annulation of Ynamides with Alkynyl Sulfoxides to Construct Substituted Maleimides","authors":"Nanfang Wang ,&nbsp;Wozheng Fang ,&nbsp;Yu Yan ,&nbsp;Nan Sun ,&nbsp;Junbiao Chang ,&nbsp;Xiao‐Na Wang","doi":"10.1002/ajoc.202400416","DOIUrl":"10.1002/ajoc.202400416","url":null,"abstract":"<div><div>A TMSOTf‐catalyzed annulation was developed for the construction of polysubstituted maleimides from ynamides and alkynyl sulfoxides, using oxygen as a green oxidant and ynamides as both carbon and nitrogen sources. This novel protocol proceeds in the presence of TMSOTf without the need for an expensive catalytic system and tolerates a broad substrate scope, providing a variety of maleimides in generally moderate to good yields under mild reaction conditions.</div></div>","PeriodicalId":130,"journal":{"name":"Asian Journal of Organic Chemistry","volume":"13 12","pages":"Article e202400416"},"PeriodicalIF":2.8,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142216972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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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