Deactivation and regeneration of in situ formed bismuth-promoted platinum catalyst for the selective oxidation of glycerol to dihydroxyacetone

2018 ◽  
Vol 42 (23) ◽  
pp. 18837-18843 ◽  
Author(s):  
Xiaomei Ning ◽  
Liang Zhan ◽  
Hongjuan Wang ◽  
Hao Yu ◽  
Feng Peng
Keyword(s):  
Selective Oxidation ◽  
Platinum Catalyst ◽  
Pt Catalyst ◽  
Glycerol Oxidation

Glycerol oxidation over a Pt catalyst can be effectively enhanced by a Bi additive in terms of activity and 1,3-dihydroxyacetone (DHA) selectivity.

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

In Situ Identifying the Dynamic Structure behind Activity of Atomically Dispersed Platinum Catalyst toward Hydrogen Evolution Reaction

Small ◽  
2021 ◽  
Vol 17 (16) ◽  
pp. 2005713
Author(s):  
Jiali Wang ◽  
Hui‐Ying Tan ◽  
Tsung‐Rong Kuo ◽  
Sheng‐Chih Lin ◽  
Chia‐Shuo Hsu ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Platinum Catalyst ◽  
Dynamic Structure

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).

In situ topologically induced PtZn alloy @ ZnTiOx and the synergistic effect on glycerol oxidation

2021 ◽  
pp. 120634
Author(s):  
Yani Zhang ◽  
Xinyi Zhang ◽  
Pengfei Yang ◽  
Mingyu Gao ◽  
Junting Feng ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Glycerol Oxidation

scholarly journals Graphene-enhanced platinum-catalysed hydrosilylation of amides and chalcones: a sustainable strategy allocated with in situ heterogenization and multitask application of H2PtCl6

RSC Advances ◽  
2017 ◽  
Vol 7 (80) ◽  
pp. 50729-50738 ◽  
Author(s):  
Ning Li ◽  
Xiao-Yun Dong ◽  
Jing-Lei Zhang ◽  
Ke-Fang Yang ◽  
Zhan-Jiang Zheng ◽  
...  
Keyword(s):  
Platinum Catalyst ◽  
Comprehensive Utilization ◽  
Supported Platinum ◽  
Supported Platinum Catalyst

This work developed a new sustainable strategy with comprehensive utilization of recovered catalyst, which the organosilicon/graphene-supported platinum catalyst prepared from reduction of amides could be further used in the 1,4-hydrosilylation of chalcones.

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.

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