関連する実験動画
Updated: Apr 24, 2026

11:15
HKUST-1 as a Heterogeneous Catalyst for the Synthesis of Vanillin
Published on: July 23, 2016
9.5K
サリチラアルディミン基の金属有機構造体で,鉄とコバルトの触媒で高度に活性なオレフィン水素化を可能にします
Kuntal Manna1, Teng Zhang, Michaël Carboni
1Department of Chemistry, University of Chicago , 929 East 57th Street, Chicago, Illinois 60637, United States.
Journal of the American Chemical Society
|September 5, 2014
まとめ
この研究は,アルケンの水素化のための高度に活性な触媒を生成するために,鉄またはコバルトで機能化された堅固な金属有機構造であるsal-MOFを導入します. 鉄基の触媒は,優れた性能と再利用性を示し,持続可能な触媒を推進しました.
科学分野:
- マテリアルサイエンス 材料科学
- カタリシス カタリシス カタリシス
- 持続可能な化学
背景:
- メタル・オーガニック・フレームワーク (MOF) は,触媒の調整可能な性質を提供します.
- 地球に豊富な触媒の開発は,持続可能な化学合成に不可欠です.
- アルケンの水素化は,有機化学における重要な変換である.
研究 の 目的:
- 頑丈で多孔性のZrベースのMOF (sal-MOF) を合成し,特徴づけること.
- アルケンの水素化のための効率的な触媒としてFe-および共機能MOF (sal-M-MOF) を開発する.
- 機能化されたMOFの触媒活性,安定性,再利用性を評価する.
主な方法:
- サリシルアルディミン由来リガンドを用いたサル-MOFの合成.
- 塩-MOFを鉄 (II) またはコバルト (II) クロリドで合成後のメタリング.
- 活性触媒を形成するためにNaBEt3Hを使用して金属化MOFの還元.
- アルケンの水素化反応における触媒性能の試験.
主要な成果:
- UiOトポロジーで頑丈で多孔性のZrベースのMOFを成功裏に合成しました.
- Fe-およびCo-functionalized MOF (sal-M-MOF) を開発し,アルケンの水素化において高い活性を示した.
- sal-Fe-MOFは,非常に高いターンオーバー数 (最大14万5000個) と,15サイクル以上の再利用性を実証しました.
- sal-Co-MOFは,重要な触媒活性も示した.
結論:
- sal-M-MOFは,アルケンの水素化のための非常に効果的な固体触媒である.
- 開発されたMOFベースの触媒は,地球に豊富な金属を使用し,持続可能な合成を促進します.
- この研究は,高度な触媒材料として機能化されたMOFの潜在能力を実証しています.
関連する概念動画
Reduction of Alkenes: Asymmetric Catalytic Hydrogenation
2.6K
Catalytic hydrogenation of alkenes is a transition-metal catalyzed reduction of the double bond using molecular hydrogen to give alkanes. The mode of hydrogen addition follows syn stereochemistry.
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...
2.6K
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
Reduction of Alkenes: Catalytic Hydrogenation
12.3K
Alkenes undergo reduction by the addition of molecular hydrogen to give alkanes. Because the process generally occurs in the presence of a transition-metal catalyst, the reaction is called catalytic hydrogenation.
Metals like palladium, platinum, and nickel are commonly used in their solid forms — fine powder on an inert surface. As these catalysts remain insoluble in the reaction mixture, they are referred to as heterogeneous catalysts.
The hydrogenation process takes place on the...
Metals like palladium, platinum, and nickel are commonly used in their solid forms — fine powder on an inert surface. As these catalysts remain insoluble in the reaction mixture, they are referred to as heterogeneous catalysts.
The hydrogenation process takes place on the...
12.3K
Reduction of Alkynes to cis-Alkenes: Catalytic Hydrogenation
6.8K
Introduction
Like alkenes, alkynes can be reduced to alkanes in the presence of transition metal catalysts such as Pt, Pd, or Ni. The reaction involves two sequential syn additions of hydrogen via a cis-alkene intermediate.
Like alkenes, alkynes can be reduced to alkanes in the presence of transition metal catalysts such as Pt, Pd, or Ni. The reaction involves two sequential syn additions of hydrogen via a cis-alkene intermediate.
6.8K
Properties of Organometallic Compounds
2.0K
Organometallic compounds are compounds that contain a carbon–metal bond. Carbon belongs to an organyl group like alkyl, aryl, allyl, or benzyl groups. The metal can be from Group I or Group II of the periodic table, a transition metal, or a semimetal.
2.0K
Alkynes to Aldehydes and Ketones: Hydroboration-Oxidation
19.7K
Introduction
One of the convenient methods for the preparation of aldehydes and ketones is via hydration of alkynes. Hydroboration-oxidation of alkynes is an indirect hydration reaction in which an alkyne is treated with borane followed by oxidation with alkaline peroxide to form an enol that rapidly converts into an aldehyde or a ketone. Terminal alkynes form aldehydes, whereas internal alkynes give ketones as the final product.
One of the convenient methods for the preparation of aldehydes and ketones is via hydration of alkynes. Hydroboration-oxidation of alkynes is an indirect hydration reaction in which an alkyne is treated with borane followed by oxidation with alkaline peroxide to form an enol that rapidly converts into an aldehyde or a ketone. Terminal alkynes form aldehydes, whereas internal alkynes give ketones as the final product.
19.7K

