Tetrahedron chem最新文献_第9页

Strategic use of crude H2 for the catalytic reduction of carbonyl compounds 将粗 H2 用于羰基化合物催化还原的战略用途

Tetrahedron chem Pub Date : 2024-03-01 Epub Date: 2023-12-23 DOI: 10.1016/j.tchem.2023.100059

Mahiro Sakuraba , Sensuke Ogoshi , Yoichi Hoshimoto

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Diversity oriented total synthesis (DOTS) of pyridoquinazolinone alkaloids and their analogues 以多样性为导向的吡啶喹唑啉酮生物碱及其类似物的全合成（DOTS）

Tetrahedron chem Pub Date : 2024-03-01 Epub Date: 2024-01-19 DOI: 10.1016/j.tchem.2024.100062

Sivappa Rasapalli , Yanchang Huang , Vamshikrishna Reddy Sammeta , Reem Alshehry , Fazmina Anver , James A. Golen , Shivasankar Krishnamoorthy , Subhash P. Chavan

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Strain-release transformations of bicyclo[1.1.0]butanes and [1.1.1]propellanes 双环[1.1.0]丁烷和[1.1.1]丙烷的应变释放转化

Tetrahedron chem Pub Date : 2024-03-01 Epub Date: 2024-02-28 DOI: 10.1016/j.tchem.2024.100070

Qian-Qian Hu , Jie Chen , Yang Yang , Hui Yang , Ling Zhou

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Latest updates in ElectroPhotoChemical reactions 电光化学反应的最新进展

Tetrahedron chem Pub Date : 2024-03-01 Epub Date: 2023-12-25 DOI: 10.1016/j.tchem.2023.100061

F. Medici , V. Chiroli, L. Raimondi , M. Benaglia

{"title":"Latest updates in ElectroPhotoChemical reactions","authors":"F. Medici , V. Chiroli, L. Raimondi , M. Benaglia","doi":"10.1016/j.tchem.2023.100061","DOIUrl":"https://doi.org/10.1016/j.tchem.2023.100061","url":null,"abstract":"<div>In the last twenty years, electrochemistry and photochemistry have attracted a renewed and still uprising interest in organic synthesis. Two of the most simple and abundant reagents, electrons and photons, became the key players in synthetic chemistry as cornerstones of developing greener and sustainable chemical processes. An interesting strategy that recently emerged is the possibility of merging the two worlds in what is called ElectroPhotoChemistry (EPC). In particular, this review will focus on the most recent contributions in the field. The basic principles of EPC will be presented along with a discussion of the published works of the last few years. Electrophotochemical oxidation/reduction reactions will be discussed, including in this section the transformations of a C–H bond to a C-X (X: heteroatom). In the C–H activation chapter the formation of C–C bond, starting from a C–H bond, will be considered. Finally, the miscellaneous chapter includes examples which do not clearly belong to the previous categories.</div>","PeriodicalId":74918,"journal":{"name":"Tetrahedron chem","volume":"9 ","pages":"Article 100061"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666951X2300027X/pdfft?md5=39901c65a1a77116384777ef9d4b7040&pid=1-s2.0-S2666951X2300027X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139099781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Formal synthesis of bastimolide A using a chiral Horner-Wittig reagent and a bifunctional aldehyde as key building blocks 以手性霍纳-维蒂希试剂和双功能醛为关键构件正式合成韧皮部内酯 A

Tetrahedron chem Pub Date : 2024-03-01 Epub Date: 2024-02-18 DOI: 10.1016/j.tchem.2024.100065

Ibrahim-Ethem Celik , Fabia Mittendorf , Adrián Gómez-Suárez, Stefan F. Kirsch

引用次数: 0

Recent advances in stereoselective synthesis of non-classical glycosides 非经典苷类立体选择性合成的最新进展

Tetrahedron chem Pub Date : 2024-03-01 Epub Date: 2024-02-24 DOI: 10.1016/j.tchem.2024.100068

Anrong Chen , Guoqiang Cheng , Feng Zhu

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Recent advances of the Grignard-type reactions without involving organohalides 不涉及有机卤化物的格氏反应的最新进展

Tetrahedron chem Pub Date : 2024-03-01 Epub Date: 2024-02-28 DOI: 10.1016/j.tchem.2024.100069

Yu Huang, Ruizhi Yang, Wenbo H. Liu

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Multiple Isocyanide insertions promoted by protic and Lewis acids 原酸和路易斯酸促进多种异氰酸酯插入

Tetrahedron chem Pub Date : 2024-03-01 Epub Date: 2023-12-09 DOI: 10.1016/j.tchem.2023.100056

John Kornfeind, Fraser F. Fleming

{"title":"Multiple Isocyanide insertions promoted by protic and Lewis acids","authors":"John Kornfeind, Fraser F. Fleming","doi":"10.1016/j.tchem.2023.100056","DOIUrl":"10.1016/j.tchem.2023.100056","url":null,"abstract":"<div>The protonation, or Lewis Acid complexation, of electrophiles can trigger the sequential insertion of two or more isocyanides resulting in valuable iminonitriles or heterocycles. The number of insertions is controlled by the nature of the alkyl- or arylisocyanide and by the presence of a proximal nucleophile capable of attacking the intermediate nitrilium; loss of an alkyl group from the nitrilium or attack by a nucleophile terminates further isocyanide insertions. The mechanistic survey of protic and Lewis acid-promoted isocyanide insertions aims to provide a fundamental understanding of the reactivity and selectivity to facilitate synthetic applications. The review is structured with an introductory overview followed by a mechanistic analysis before moving to a survey of double insertions, which are the most prevalent, then triple insertions; the survey concludes with the sole example of a quadruple insertion. The hope is that the insight contained in the review will aid in applying protic and Lewis acid-activated isocyanide insertions to prepare an array of complex heterocycles.</div>","PeriodicalId":74918,"journal":{"name":"Tetrahedron chem","volume":"9 ","pages":"Article 100056"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666951X23000220/pdfft?md5=20f0f51e5e580d9f8eb947e27e3285d6&pid=1-s2.0-S2666951X23000220-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138615244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Inverse electron demand Diels-Alder reaction in total synthesis of bioactive natural products 生物活性天然产物全合成中的反电子需求 Diels-Alder 反应

Tetrahedron chem Pub Date : 2024-03-01 Epub Date: 2024-02-17 DOI: 10.1016/j.tchem.2024.100066

Showkat Rashid , Waseem I. Lone , Auqib Rashid , Bilal A. Bhat

引用次数: 0

Coordination-driven self-assembly formation of Ru(II)-metallocycles based on 4-amino-1,8-naphthalimide Tröger's base supramolecular scaffold: Synthesis, characterization, and heparin-binding study 基于 4-氨基-1,8-萘二甲酰亚胺特罗格碱超分子支架的 Ru(II) 金属环的配位驱动自组装形成：合成、表征和肝素结合研究

Tetrahedron chem Pub Date : 2024-03-01 Epub Date: 2024-03-06 DOI: 10.1016/j.tchem.2024.100071

Binduja Mohan, Ananthu Shanmughan, Mannanthara Kunhumon Noushija, Dipanjana Sarkar, Purti Patel, Sankarasekaran Shanmugaraju

{"title":"Coordination-driven self-assembly formation of Ru(II)-metallocycles based on 4-amino-1,8-naphthalimide Tröger's base supramolecular scaffold: Synthesis, characterization, and heparin-binding study","authors":"Binduja Mohan, Ananthu Shanmughan, Mannanthara Kunhumon Noushija, Dipanjana Sarkar, Purti Patel, Sankarasekaran Shanmugaraju","doi":"10.1016/j.tchem.2024.100071","DOIUrl":"https://doi.org/10.1016/j.tchem.2024.100071","url":null,"abstract":"<div>The synthesis, characterization, and heparin polyanion sensing properties of a series of [2 + 2] self-assembled Ru(II)-metallocycles based on a green emitting 4-amino-1,8-naphthalimide Tröger's base (TBNap) supramolecular scaffold are described here. TBNap was reacted in a 2:2 stoichiometric ratio with a series of half-sandwiched Ru2(II)-acceptors (M1 to M4) to isolate four new tetranuclear Ru(II)-metallocycles, TB-MC-1 to TB-MC-4. All the metallocycles were characterized using NMR (1H & 13C), FT-IR, and ESI-MS. A positive solvatochromism was observed for the metallocycles in different solvents with varying polarity. The strong-fluorescence emission of metallocycles was drastically quenched upon the addition of increasing concentration of heparin polyanions and the Stern-Volmer quenching constants (KSV) were determined to be in the order of 105 M−1. All these results demonstrate the usefulness of metallocycles for sensing and quantifying the concentration of heparin polyanion.</div>","PeriodicalId":74918,"journal":{"name":"Tetrahedron chem","volume":"9 ","pages":"Article 100071"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666951X2400010X/pdfft?md5=8ef1cec9f54116af8d46d62a45b2a032&pid=1-s2.0-S2666951X2400010X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140062781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0