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Regioselectivity Inversion in the Cycloaddition Reaction between Stable Nitrile Oxides and Acylalkyne Derivatives

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Regioselectivity Inversion in the Cycloaddition Reaction between Stable Nitrile Oxides and Acylalkyne Derivatives

資料種別
記事
著者
Hashimoto Yoshimitsuほか
出版者
The Pharmaceutical Society of Japan
出版年
2025-11-26
資料形態
デジタル
掲載誌名
Chem. Pharm. Bull. 73 11
掲載ページ
p.1065-1074
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資料詳細

要約等:

<p>1,3-Dipolar cycloaddition reaction of stable nitrile oxides with <i>α</i>,<i>β</i>-alkynyl hydrazones affords 5-iminoisoxazoles, whereas the reacti...

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デジタル

資料種別
記事
出版年月日等
2025-11-26
出版年(W3CDTF)
2025-11-26
タイトル(掲載誌)
Chem. Pharm. Bull.
巻号年月日等(掲載誌)
73 11
掲載巻
73
掲載号
11
掲載ページ
1065-1074
掲載年月日(W3CDTF)
2025-11-26
ISSN(掲載誌)
00092363
出版事項(掲載誌)
The Pharmaceutical Society of Japan
本文の言語コード
en
対象利用者
一般
標準番号(その他)
PMID : 41297939
参照
First Total Syntheses of Tetracenomycins C and X
Nitrile Oxides. VIII. Cyanogen N-Oxide<sup>1</sup>
Synthesis of Pyrazoles via Electrophilic Cyclization
Cycloaddition of nitrile oxides to cyclic and acyclic α,β-unsaturated amides. Frontier orbital interactions and an unexpected steric drift determine regiochemistry
Chemical space as a source for new drugs
Total Synthesis and Structure Assignment of the Anthrone C‐Glycoside Cassialoin
Asymmetric Inverse‐Electron‐Demand 1,3‐Dipolar Cycloaddition of C,N‐Cyclic Azomethine Imines: An Umpolung Strategy
Ligand-Based Design of Allosteric Retinoic Acid Receptor-Related Orphan Receptor γt (RORγt) Inverse Agonists
An Isoxazole Strategy for Molybdenum-Mediated Synthesis of 5-Mono- and 4,5-Disubstituted 1<i>H</i>-Pyrrole-2,3-diones
Notes- Action of Hydroxylamine, Hydrazine Hydrate, and Phenylhydrazine on 2-Acetoaceto-1-naphthol
Efficient and convenient method for the synthesis of isoxazoles in ionic liquid
Vinylogous hydrazone strategy for the organocatalytic alkylation of heteroaromatic derivatives
Dansylated Nitrile <i>N</i>‐Oxide as the Fluorescent Dye Clickable to Unsaturated Bonds without Catalyst
Hydrazone Activation in the Aminocatalytic Cascade Reaction for the Synthesis of Tetrahydroindolizines
Total Synthesis of the Antibiotic BE‐43472B
Inverse-electron-demand Diels–Alder reactions of α,β-unsaturated hydrazones with 3-methoxycarbonyl α-pyrones
Inverse-Electron-Demand oxa-Diels–Alder Reactions of α-Keto-β,γ-unsaturated Esters and α,β-Unsaturated Hydrazones
Total Synthesis and Absolute Stereochemistry of Seragakinone A
Behaviour of nitrile oxides towards nucleophiles. Part III. Dimerisation of aromatic nitrile oxides catalysed by trimethylamine
The recent progress of isoxazole in medicinal chemistry
Decomposition of Alkynyl Hydrazones: Synthesis of Allenoates, Dihaloallenoates, and Angularly Fused Tricyclic Azepines
A Study of the Direction of Enolization of Mesitoyl-m-nitrobenzoylmethane
Asymmetric [4+2]‐Cycloaddition of Anthracene Derivatives <i>via</i> Hydrazone Activation
Polyester-Containing α-Cyclodextrin-Based Polyrotaxane: Synthesis by Living Ring-Opening Polymerization, Polypseudorotaxanation, and End Capping Using Nitrile <i>N</i>-Oxide
Utilization of electron-donating α,β-unsaturated oximes: regioselective inverse 1,3-dipolar cycloaddition of nitrones
Cycloadditions of Nitrile Oxides to α,β-Unsaturated Aldehydes. Frontier Orbital Interactions and Secondary Orbital Interactions at Work in Determining Regiochemistry
Nitrile oxides. IX. Basic substituted stable nitrile oxides
An Efficient New Route for the Synthesis of Some 3‐Hterocyclylquinolinones <i>via</i> Novel 3‐(1,2‐Dihydro‐4‐hydroxy‐1‐methyl‐2‐oxoquinolin‐3‐yl)‐3‐oxopropanal and Their Antioxidant Screening
Synthesis of 3,5-Disubstituted Isoxazoles and Isoxazolines in Deep Eutectic Solvents
Palladium-Catalyzed (3+3) Annulation of Allenylethylene Carbonates with Nitrile Oxides
Step-by-Step Multifunctionalization of Isoxazoles Based On SEAr Reactions and C–H Direct Arylations
Synthesis of Pyrazoles Utilizing the Ambiphilic Reactivity of Hydrazones
Metal-free DBU promoted regioselective synthesis of isoxazoles and isoxazolines
Clean and Efficient Synthesis of Isoxazole Derivatives in Aqueous Media
Studies of nitrile oxide cycloadditions, and the phenolic oxidative coupling of vanillin aldoxime by Geobacillus sp. DDS012 from Italian rye grass silage
Isoxazoles
α-Keto hydrazones in asymmetric aminocatalysis: reactivity through β-amino aza-dienamine intermediates
Efficient Access to Isoxazoles from Alkenes
Macromolecular Surface Design: Photopatterning of Functional Stable Nitrile Oxides
Gold(I)-Catalyzed Intermolecular Cycloaddition of Allenamides with α,β-Unsaturated Hydrazones: Efficient Access to Highly Substituted Cyclobutanes
One-Pot Copper(I)-Catalyzed Synthesis of 3,5-Disubstituted Isoxazoles
Target-Oriented and Diversity-Oriented Organic Synthesis in Drug Discovery
A Planning Strategy for Diversity‐Oriented Synthesis
Hydrazones as Singular Reagents in Asymmetric Organocatalysis
Advances in nitrile oxides chemistry
Approach to Tetrodotoxin via the Oxidative Amidation of a Phenol
Recent Developments in the Synthesis and Reactivity of Isoxazoles: Metal Catalysis and Beyond
A Facile One-Pot Synthesis of 3,5-Disubstituted Isoxazole Derivatives Using Hydroxy (Tosyloxy) Iodobenzene
<i>N</i>,<i>N</i>-Dialkylhydrazones in Organic Synthesis. From Simple <i>N</i>,<i>N</i>-Dimethylhydrazones to Supported Chiral Auxiliaries
Nitrile Oxides
Boronic Acid Catalysis for Mild and Selective [3+2] Dipolar Cycloadditions to Unsaturated Carboxylic Acids
Fluorescent Probes from Stable Aromatic Nitrile Oxides
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Aldehyde <i>N</i>,<i>N</i>‐Dialkylhydrazones as Neutral Acyl Anion Equivalents: Umpolung of the Imine Reactivity
1,3‐Dipolar Cycloadditions. Past and Future
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連携機関・データベース
国立情報学研究所 : CiNii Research

デジタル

要約等
<p>1,3-Dipolar cycloaddition reaction of stable nitrile oxides with <i>α</i>,<i>β</i>-alkynyl hydrazones affords 5-iminoisoxazoles, whereas the reaction of nitrile oxides with <i>α</i>,<i>β</i>-alkynyl carbonyl compounds gives 4-acylisoxazoles. The regioselectivity of the cycloaddition reaction is reversed due to the electron-donating character of the hydrazone group. The 5-iminoisoxazoles are readily converted to the corresponding 4-acylisoxazoles by dehydrazonation.</p>
DOI
10.1248/cpb.c25-00471
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インターネット公開
連携機関・データベース
科学技術振興機構 : J-STAGE