Jove
Visualize
お問い合わせ
JoVE
x logofacebook logolinkedin logoyoutube logo
JoVEについて
概要リーダーシップブログJoVEヘルプセンター
著者向け
出版プロセス編集委員会範囲と方針査読よくある質問投稿
図書館員向け
推薦の声購読アクセスリソース図書館諮問委員会よくある質問
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experimentsアーカイブ
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教員リソースセンター教員サイト
利用規約
プライバシーポリシー
ポリシー

関連する概念動画

Preparation of Epoxides03:00

Preparation of Epoxides

8.1K
Overview
Epoxides result from alkene oxidation, which can be achieved by a) air, b) peroxy acids, c) hypochlorous acids, and d) halohydrin cyclization.
Epoxidation with Peroxy Acids
Epoxidation of alkenes via oxidation with peroxy acids involves the conversion of a carbon–carbon double bond to an epoxide using the oxidizing agent meta-chloroperoxybenzoic acid, commonly known as MCPBA. Since the O–O bond of peroxy acids is very weak, the addition of electrophilic oxygen of...
8.1K
Preparation and Reactions of Sulfides02:26

Preparation and Reactions of Sulfides

5.1K
Sulfides are the sulfur analog of ethers, just as thiols are the sulfur analog of alcohol. Like ethers, sulfides also consist of two hydrocarbon groups bonded to the central sulfur atom. Depending upon the type of groups present, sulfides can be symmetrical or asymmetrical. Symmetrical sulfides can be prepared via an SN2 reaction between 2 equivalents of an alkyl halide and one equivalent of sodium sulfide.
5.1K
Acid-Catalyzed Ring-Opening of Epoxides02:24

Acid-Catalyzed Ring-Opening of Epoxides

7.7K
Epoxides that are three-membered ring systems are more reactive than other cyclic and acyclic ethers. The high reactivity of epoxides originates from the strain present in the ring. This ring strain acts as a driving force for epoxides to undergo ring-opening reactions either with halogen acids or weak nucleophiles in the presence of mild acid. The acid catalyst converts the epoxide oxygen, a poor leaving group, into an oxonium ion, a better leaving group, making the reaction feasible. The...
7.7K
Base-Catalyzed Ring-Opening of Epoxides02:26

Base-Catalyzed Ring-Opening of Epoxides

8.8K
Due to their highly strained structures, epoxides can readily undergo ring-opening reactions through nucleophilic substitution, either in the presence of an acid or a base. The nucleophilic substitution reactions in the presence of acid are called acid-catalyzed ring-opening reactions, and nucleophilic substitution reactions in the presence of a base are called base-catalyzed ring-opening reactions. Epoxides undergo base-catalyzed ring-opening reactions in the presence of a strong nucleophile...
8.8K
Oxidation of Alkenes: Syn Dihydroxylation with Osmium Tetraoxide02:44

Oxidation of Alkenes: Syn Dihydroxylation with Osmium Tetraoxide

10.8K
Alkenes are converted to 1,2-diols or glycols through a process called dihydroxylation. It involves the addition of two hydroxyl groups across the double bond with two different stereochemical approaches, namely anti and syn. Dihydroxylation using osmium tetroxide progresses with syn stereochemistry.
10.8K
Preparation and Reactions of Thiols02:33

Preparation and Reactions of Thiols

6.7K
Thiols are prepared using the hydrosulfide anion as a nucleophile in a nucleophilic substitution reaction with alkyl halides. For instance, bromobutane reacts with sodium hydrosulfide to give butanethiol.
6.7K

こちらも読む

関連記事

共著者、ジャーナル、引用グラフによってこの研究に関連する記事。

並び替え
Same author

A copper metal-organic hydrogel as a heterogeneous and reusable catalyst for the synthesis of β-amino alcohols.

Chemical communications (Cambridge, England)·2026
Same author

A Multifunctional Zn(II) Metallohydrogel for Anionic Dye Adsorption and Catalytic CO<sub>2</sub> Fixation.

Langmuir : the ACS journal of surfaces and colloids·2025
Same author

A Low Molecular Weight Iron Metallogel as an OER Catalyst.

Langmuir : the ACS journal of surfaces and colloids·2025
Same author

A self-healable metallohydrogel for drug encapsulations and drug release.

RSC advances·2023
Same author

Addition of 1,3-dicarbonyl compounds to terminal alkynes catalyzed by a cationic cobalt(iii) complex.

RSC advances·2022
Same author

Monoallylation and benzylation of dicarbonyl compounds with alcohols catalysed by a cationic cobalt(iii) compound.

RSC advances·2022

関連する実験動画

Updated: Sep 9, 2025

Synthesis of a Thiol Building Block for the Crystallization of a Semiconducting Gyroidal Metal-sulfur Framework
12:30

Synthesis of a Thiol Building Block for the Crystallization of a Semiconducting Gyroidal Metal-sulfur Framework

Published on: April 9, 2018

9.2K

CS2とエポキシドの反応による1,3-オクサチオラン-2-チオンの合成のための異質な再利用可能な触媒としての銅 ((II) 金属有機水素

Mahesh Samanta1, Tapas Mahata1, Manish Bhattacharjee1

  • 1Department of Chemistry Indian Institute of Technology, Kharagpur 721302, India. mxb@iitkgp.ac.in.

Chemical communications (Cambridge, England)
|September 2, 2025
PubMed
まとめ

新しい銅 ((II) 金属有機ヒドロゲルは,1,3-オクサチオラン-2-チオンの合成を効率的に触媒化する. この再利用可能な触媒は 溶媒のない条件下で選択的に作用し 緑の化学的アプローチを提供します

さらに関連する動画

HKUST-1 as a Heterogeneous Catalyst for the Synthesis of Vanillin
11:15

HKUST-1 as a Heterogeneous Catalyst for the Synthesis of Vanillin

Published on: July 23, 2016

10.3K
[DPEPhosbcpCu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst
09:12

[DPEPhosbcpCu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst

Published on: May 21, 2019

9.4K

関連する実験動画

Last Updated: Sep 9, 2025

Synthesis of a Thiol Building Block for the Crystallization of a Semiconducting Gyroidal Metal-sulfur Framework
12:30

Synthesis of a Thiol Building Block for the Crystallization of a Semiconducting Gyroidal Metal-sulfur Framework

Published on: April 9, 2018

9.2K
HKUST-1 as a Heterogeneous Catalyst for the Synthesis of Vanillin
11:15

HKUST-1 as a Heterogeneous Catalyst for the Synthesis of Vanillin

Published on: July 23, 2016

10.3K
[DPEPhosbcpCu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst
09:12

[DPEPhosbcpCu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst

Published on: May 21, 2019

9.4K

科学分野:

  • 材料科学
  • 有機化学
  • キャタリシス

背景:

  • メタル・オーガニック・ヒドロゲルは,触媒用途で調節可能な性質を提供します.
  • 1,3-オクサチオラン-2-チオンのようなヘテロサイクル化合物の効率的な合成は,有機化学において極めて重要です.
  • 持続可能な再利用可能な触媒システムの開発は,グリーン化学の重要な目標です.

研究 の 目的:

  • 新しい銅 (II) 金属有機ヒドロゲルを合成し,特徴づけること.
  • 合成されたヒドロゲルの触媒効率と再利用性を評価する.
  • 1,3-オクサチオラン-2-チオンの選択的合成を,溶媒のない条件下で実証する.

主な方法:

  • 銅 ((II) 金属有機ヒドロゲルの合成は, ((2-ヒドロキナフタレン-1-イル) メチル) -L-スレオニンリガンドを使用する.
  • 合成されたヒドロゲル材料の特徴
  • 二酸化炭素 (CS2) とエポキシドの触媒反応により1,3-オクサチオラン-2-チオンを形成する.

主要な成果:

  • 銅 (II) 金属有機ヒドロゲルの合成と特徴付けに成功した.
  • ハイドロゲルは高効率で,触媒として選択性を示した.
  • 触媒は再利用可能で,複数の反応サイクルでその活性を維持した.
  • 合成は溶媒のない環境で,グリーン化学の原理に沿って行われました.

結論:

  • 開発された銅 ((II) 金属有機ヒドロゲルは,有効でリサイクル可能な触媒です.
  • この触媒システムは,1,3-オクサチオラン-2-チオンの合成のための持続可能な経路を提供します.
  • この研究は,緑の有機合成における金属有機ヒドロゲルの可能性を強調しています.