Aerobic Oxidation of Phosphite Esters to Phosphate Esters by Using an Ionic-Liquid-Supported Organotelluride Reusable Catalyst

Synlett ◽  
2020 ◽  
Vol 31 (20) ◽  
pp. 2043-2045
Author(s):  
Shinichi Koguchi ◽  
Aya Mihoya ◽  
Yuga Shibuya ◽  
Akane Ito ◽  
Anna Toyoda ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Aerobic Oxidation ◽  
Recyclable Catalyst ◽  
Phosphate Esters ◽  
High Conversion ◽  
Reusable Catalyst ◽  
Isolation And Purification ◽  
Conversion Rates

AbstractWe describe the synthesis of an ionic-liquid (IL)-supported organotelluride catalyst and its application as a recyclable catalyst for the aerobic oxidation of phosphite esters to phosphate esters. This method shows high conversion rates, allows the ready isolation and purification of the resulting products, and exhibits good reusability of the catalyst.

Chitosan grafted with a heteropolyanion-based ionic liquid as an effective and reusable catalyst for acetalization

RSC Advances ◽  
2016 ◽  
Vol 6 (47) ◽  
pp. 41404-41409 ◽  
Author(s):  
Wei-Hong Zhang ◽  
Shan-Shan Liu ◽  
Ping Liu ◽  
Jie Xu ◽  
Bing Xue ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Radical Addition ◽  
Recyclable Catalyst ◽  
Reusable Catalyst

Chitosan grafted with a heteropolyanion-based ionic liquid (CS–VImPS–PW) was developed via a radical addition and subsequent acidification reaction. It proved to be a green, effective and recyclable catalyst for various acetalization reactions.

Supported task-specific ionic liquid catalyst for highly efficient and recyclable aerobic oxidation of benzyl alcohols

2011 ◽  
Vol 89 (1) ◽  
pp. 68-71 ◽  
Author(s):  
Lin Liu ◽  
Juanjuan Ma ◽  
Zhen Sun ◽  
Jianping Zhang ◽  
Jingjing Huang ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Catalytic System ◽  
Aerobic Oxidation ◽  
Copper Salt ◽  
High Conversion ◽  
Allylic Alcohols ◽  
Benzyl Alcohols ◽  
Highly Efficient ◽  
Silica Supports ◽  
Task Specific Ionic Liquid

A novel catalytic system was prepared by impregnating ionic liquid immobilized 2,2,6,6-tetramethylpiperidyl-1-oxyl (TEMPO) and copper salt onto various silica supports. This catalytic system was capable of rapidly converting different benzylic and allylic alcohols into the corresponding aldehydes under O2 atmosphere with high conversion. Recycling results showed that the catalyst could be easily recovered and reused.

scholarly journals Oxidation of Thiol Using Ionic Liquid-Supported Organotelluride as a Recyclable Catalyst

Catalysts ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 398 ◽  
Author(s):  
Aya Mihoya ◽  
Shinichi Koguchi ◽  
Yuga Shibuya ◽  
Minato Mimura ◽  
Makoto Oba
Keyword(s):  
Ionic Liquid ◽  
Catalytic Activity ◽  
Liquid Phase ◽  
Aerobic Oxidation ◽  
Supported Catalyst ◽  
Recyclable Catalyst ◽  
High Catalytic Activity ◽  
Thiol Oxidation ◽  
Ether Extraction ◽  
Organotellurium Compounds

Organotellurium compounds are known to be useful oxidation reagents. For developing a recoverable and reusable reagent, this paper describes the use of an ionic liquid (IL) support for the organotellurium reagent and its application as a recyclable catalyst for thiol oxidation. We have successfully prepared a novel diphenyl telluride derivative 5 bearing an imidazolium hexafluorophosphate group in its structure. It is found that the IL-supported diphenyl telluride 5 efficiently catalyzed the aerobic oxidation of various thiols in [bmim]PF6 solution under photosensitized conditions to provide the corresponding disulfides in excellent yields. The product can be isolated by simple ether extraction. The IL-supported catalyst 5 remaining in the ionic liquid phase can be reused for five successive runs while retaining high catalytic activity (97% yield even in the fifth run).

scholarly journals Biocompatible ionic liquid [Betaine][H2PO4] as a reusable catalyst for the substitution of xanthen-9-ol under solvent-free conditions

RSC Advances ◽  
2020 ◽  
Vol 10 (52) ◽  
pp. 31662-31669
Author(s):  
Anlian Zhu ◽  
Tong Wang ◽  
Wanlu Feng ◽  
Jianji Wang ◽  
Lingjun Li
Keyword(s):  
Ionic Liquid ◽  
Substitution Reaction ◽  
Solvent Free ◽  
Reusable Catalyst ◽  
Solvent Free Conditions ◽  
Direct Substitution

A cheap and biocompatible ionic liquid [Betaine][H2PO4] was found to be an efficient and reusable catalyst for the direct substitution reaction of xanthen-9-ol under solvent-free conditions.

Magnetic polymer nanocomposite-supported Pd: an efficient and reusable catalyst for the Heck and Suzuki reactions in water

2015 ◽  
Vol 39 (3) ◽  
pp. 2052-2059 ◽  
Author(s):  
Dongfang Wang ◽  
Wendong Liu ◽  
Fengling Bian ◽  
Wei Yu
Keyword(s):  
Polymer Nanocomposites ◽  
Polymer Nanocomposite ◽  
Recyclable Catalyst ◽  
Water Phase ◽  
Reusable Catalyst ◽  
Suzuki Reactions ◽  
Supported Pd

Pd supported on magnetic polymer nanocomposites serves as an efficient and recyclable catalyst for the water-phase Heck and Suzuki reactions.

PdEDTA Held in an Ionic Liquid Brush as a Highly Efficient and Reusable Catalyst for Suzuki Reactions in Water

2009 ◽  
Vol 74 (16) ◽  
pp. 6283-6286 ◽  
Author(s):  
Jun-Fa Wei ◽  
Jiao Jiao ◽  
Jin-Juan Feng ◽  
Jing Lv ◽  
Xi-Ru Zhang ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Reusable Catalyst ◽  
Suzuki Reactions ◽  
Highly Efficient

Heterogenization of amine-functionalized ionic liquids using graphene oxide as a support material: a highly efficient catalyst for the synthesis of 3-substituted indoles via Yonemitsu-type reaction

2017 ◽  
Vol 41 (24) ◽  
pp. 15545-15554 ◽  
Author(s):  
Charu Garkoti ◽  
Javaid Shabir ◽  
Padmini Gupta ◽  
Manisha Sharma ◽  
Subho Mozumdar
Keyword(s):  
Ionic Liquid ◽  
Graphene Oxide ◽  
Ionic Liquids ◽  
Recyclable Catalyst ◽  
Support Material ◽  
Efficient Catalyst ◽  
Functionalized Ionic Liquid ◽  
Type Reaction ◽  
Highly Efficient ◽  
Amine Functionalized

Heterogenization of amine functionalized ionic liquid and its application as an efficient and recyclable catalyst.

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