Immobilization of polyoxometalates via in-situ protonation and self-gelation of PEG-b-PDMAEMA-b-PTEPM triblock copolymer and its application in selective oxidation

Polymer ◽  
2022 ◽  
pp. 124512
Author(s):  
Jing Yan ◽  
Jianghao Yao ◽  
Yinghui Hu ◽  
Diping Huang ◽  
Dongdong Yao ◽  
...  
Keyword(s):  
Selective Oxidation ◽  
Triblock Copolymer

scholarly journals Enhanced Selective Oxidation of Benzyl Alcohol via In Situ H2O2 Production over Supported Pd-Based Catalysts

ACS Catalysis ◽  
2021 ◽  
pp. 2701-2714
Author(s):  
Caitlin M. Crombie ◽  
Richard J. Lewis ◽  
Rebekah L. Taylor ◽  
David J. Morgan ◽  
Thomas E. Davies ◽  
...  
Keyword(s):  
Benzyl Alcohol ◽  
Selective Oxidation ◽  
H2o2 Production ◽  
Oxidation Of Benzyl Alcohol ◽  
Supported Pd

Hypervalent iodine catalysis for selective oxidation of Baylis–Hillman adducts via in situ generation of o-iodoxybenzoic acid (IBX) from 2-iodosobenzoic acid (IBA) in the presence of oxone

2016 ◽  
Vol 40 (12) ◽  
pp. 10300-10304 ◽  
Author(s):  
Raktani Bikshapathi ◽  
Parvathaneni Sai Prathima ◽  
Vaidya Jayathirtha Rao
Keyword(s):  
Selective Oxidation ◽  
Carbonyl Compounds ◽  
Hypervalent Iodine ◽  
In Situ Generation ◽  
Iodosobenzoic Acid ◽  
High Yields

An efficient, eco-friendly protocol for selective oxidation of primary and secondary Baylis–Hillman alcohols to the corresponding carbonyl compounds in high yields has been developed with 2-iodosobenzoic acid (IBA).

Thermosensitive in situ hydrogel based on the hybrid of hyaluronic acid and modified PCL/PEG triblock copolymer

2014 ◽  
Vol 108 ◽  
pp. 26-33 ◽  
Author(s):  
Zesheng Lv ◽  
Longlong Chang ◽  
Xingwen Long ◽  
Jianping Liu ◽  
Yuzhang Xiang ◽  
...  
Keyword(s):  
Hyaluronic Acid ◽  
Triblock Copolymer ◽  
In Situ Hydrogel

scholarly journals Selective benzylic C–H monooxygenation mediated by iodine oxides

2019 ◽  
Vol 15 ◽  
pp. 602-609
Author(s):  
Kelsey B LaMartina ◽  
Haley K Kuck ◽  
Linda S Oglesbee ◽  
Asma Al-Odaini ◽  
Nicholas C Boaz
Keyword(s):  
Selective Oxidation ◽  
High Yield ◽  
Hypervalent Iodine ◽  
Iodine Species ◽  
Mechanistic Analysis ◽  
Substrate Tolerance ◽  
Iodine Oxides ◽  
Moderate Yield

A method for the selective monooxdiation of secondary benzylic C–H bonds is described using an N-oxyl catalyst and a hypervalent iodine species as a terminal oxidant. Combinations of ammonium iodate and catalytic N-hydroxyphthalimide (NHPI) were shown to be effective in the selective oxidation of n-butylbenzene directly to 1-phenylbutyl acetate in high yield (86%). This method shows moderate substrate tolerance in the oxygenation of substrates containing secondary benzylic C–H bonds, yielding the corresponding benzylic acetates in good to moderate yield. Tertiary benzylic C–H bonds were shown to be unreactive under similar conditions, despite the weaker C–H bond. A preliminary mechanistic analysis suggests that this NHPI-iodate system is functioning by a radical-based mechanism where iodine generated in situ captures formed benzylic radicals. The benzylic iodide intermediate then solvolyzes to yield the product ester.

scholarly journals Cu3Pt1–Cu2O nanocomposites: synergistic effect-dependent high activity and stability for the gas-phase selective oxidation of alcohols

RSC Advances ◽  
2017 ◽  
Vol 7 (86) ◽  
pp. 54861-54865 ◽  
Author(s):  
Kun Liu ◽  
Houkun Long ◽  
Guangyi Wang ◽  
Yongbin Sun ◽  
Chao Hou ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
High Activity ◽  
Gas Phase ◽  
Selective Oxidation ◽  
Oxidation Of Alcohols

The catalyst Cu3Pt1–Cu2O/SiC was facilely prepared via the in situ reaction of the corresponding compounds supported on SiC in the reaction stream.

Sodium Selenosulfate from Sodium Sulfite and Selenium Powder: An Odorless Selenylating Reagent for Alkyl Halides to Produce Dialkyl Diselenide Catalysts

Synlett ◽  
2019 ◽  
Vol 30 (14) ◽  
pp. 1698-1702
Author(s):  
Yonghong Liu ◽  
Hai Ling ◽  
Chao Chen ◽  
Qing Xu ◽  
Lei Yu ◽  
...  
Keyword(s):  
Selective Oxidation ◽  
Carbonyl Compounds ◽  
Sodium Sulfite ◽  
Alkyl Halides ◽  
Production Costs ◽  
Synthetic Method ◽  
Practical Applications ◽  
Sodium Selenosulfate ◽  
Villiger Oxidation

Na2SeSO3, which can be generated in situ by the reaction of Na2SO3 with Se power, was found to be an odorless reagent for the selenenylation of alkyl halides to produce dialkyl diselenides. These products have been recently shown to be good catalysts for the Baeyer–Villiger oxidation of carbonyl compounds, for the selective oxidation of alkenes, or for the oxidative deoximation of oximes. By using aqueous EtOH as the solvent and avoiding the generation of a malodourous selenol intermediate, the selenylation reaction with Na2SeSO3 is much more environmentally friendly than conventional methods. Owing to the cheap and abundant starting materials and selenium reagents, our novel synthetic method reduces the production costs of dialkyl diselenides as organoselenium catalysts, thereby advancing practical applications of organoselenium-catalysis technologies.

Selective oxidation of dibenzothiophene by peroxybenzoic acid formed in situ

1982 ◽  
Vol 21 (3) ◽  
pp. 426-431 ◽  
Author(s):  
Ali Paybarah ◽  
Russell L. Bone ◽  
William H. Corcoran
Keyword(s):  
Selective Oxidation
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