Mechanistic Study of a One-Step Catalytic Conversion of Fructose to 2,5-Dimethyltetrahydrofuran

2012 ◽  
Vol 18 (39) ◽  
pp. 12363-12371 ◽  
Author(s):  
Matthew R. Grochowski ◽  
Weiran Yang ◽  
Ayusman Sen
Keyword(s):  
Catalytic Conversion ◽  
Mechanistic Study ◽  
One Step

Mechanistic study of the catalytic conversion of 2,3-butanediol to butenes

2018 ◽  
Vol 360 ◽  
pp. 221-239 ◽  
Author(s):  
Quanxing Zheng ◽  
Jiayi Xu ◽  
Bin Liu ◽  
Keith L. Hohn
Keyword(s):  
Catalytic Conversion ◽  
Mechanistic Study

scholarly journals Catalytic conversion of furanic compounds over Ga-modified ZSM-5 zeolites as a route to biomass-derived aromatics

2018 ◽  
Vol 20 (16) ◽  
pp. 3818-3827 ◽  
Author(s):  
Evgeny A. Uslamin ◽  
Nikolay A. Kosinov ◽  
Evgeny A. Pidko ◽  
Emiel J. M. Hensen
Keyword(s):  
Catalytic Conversion ◽  
Cellulosic Biomass ◽  
Mechanistic Study ◽  
Model Compounds ◽  
Furanic Compounds

Herein we report a mechanistic study of aromatization of furanics, as model compounds for cellulosic biomass, over (Ga)HZSM-5 catalysts.

Enhanced performance of glycerol to aromatics over Sn-containing HZSM-5 zeolites

RSC Advances ◽  
2016 ◽  
Vol 6 (49) ◽  
pp. 42984-42993 ◽  
Author(s):  
Fei Wang ◽  
Weiyin Xiao ◽  
Lijing Gao ◽  
Guomin Xiao
Keyword(s):  
Catalytic Conversion ◽  
One Step

Two routes exist in one-step catalytic conversion of glycerol to aromatics.

scholarly journals Uncatalysed Oxidative C‒H Amination of 9,10-Dihydro-9-Heteroanthracenes: A Mechanistic Study

2019 ◽  
Author(s):  
Nicolaas P. van Leest ◽  
Lars grooten ◽  
Jarl Ivar van der Vlugt ◽  
Bas de Bruin
Keyword(s):  
Proton Acceptor ◽  
Mechanistic Study ◽  
Metal Catalyst ◽  
Heteroaromatic Compounds ◽  
Alternative Pathways ◽  
Nitrene Transfer ◽  
Imido Complexes ◽  
One Step ◽  
The One ◽  
Uncatalysed Reaction

A new method for the one-step C‒H amination of xanthene and thioxanthene with sulfonamides is reported, without the need for any metal catalyst. A benzoquinone is employed as a hydride (or two-electron and one-proton) acceptor. Moreover, a previously unknown and uncatalysed reaction between iminoiodanes and xanthene, thioxanthene and dihydroacridines (9,10-dihydro-9-hetero-anthracenes or dihydroheteroanthracenes) is disclosed. The reactions proceed via hydride transfer from the heteroarene substrate to the iminoiodane or benzoquinone, followed by conjugate addition of the sulfonamide to the oxidized heteroaromatic compounds. These findings may have important mechanistic implications for metal-catalysed C‒H amination processes involving nitrene transfer from iminoiodanes to dihydroheteroanthracenes. Due to the weak C‒H bond, xanthene is an often-employed substrate in mechanistic studies of C‒H amination reactions, which are generally proposed to proceed via metal-catalysed nitrene insertion, especially for reactions involving nitrene or imido complexes that are less reactive (i.e. less strongly oxidizing). However, these substrates clearly undergo non-catalysed (proton-coupled) redox coupling with amines, thus providing alternative pathways to the widely assumed metal-catalysed pathways.

One step catalytic conversion of cellulose to sustainable chemicals utilizing cooperative ionic liquid pairs

2011 ◽  
Vol 13 (9) ◽  
pp. 2334 ◽  
Author(s):  
Jinxing Long ◽  
Bin Guo ◽  
Xuehui Li ◽  
Yanbin Jiang ◽  
Furong Wang ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Catalytic Conversion ◽  
One Step

scholarly journals Uncatalysed Oxidative C‒H Amination of 9,10-Dihydro-9-Heteroanthracenes: A Mechanistic Study

2019 ◽  
Author(s):  
Nicolaas P. van Leest ◽  
Lars grooten ◽  
Jarl Ivar van der Vlugt ◽  
Bas de Bruin
Keyword(s):  
Proton Acceptor ◽  
Mechanistic Study ◽  
Metal Catalyst ◽  
Heteroaromatic Compounds ◽  
Alternative Pathways ◽  
Nitrene Transfer ◽  
Imido Complexes ◽  
One Step ◽  
The One ◽  
Uncatalysed Reaction

A new method for the one-step C‒H amination of xanthene and thioxanthene with sulfonamides is reported, without the need for any metal catalyst. A benzoquinone is employed as a hydride (or two-electron and one-proton) acceptor. Moreover, a previously unknown and uncatalysed reaction between iminoiodanes and xanthene, thioxanthene and dihydroacridines (9,10-dihydro-9-hetero-anthracenes or dihydroheteroanthracenes) is disclosed. The reactions proceed via hydride transfer from the heteroarene substrate to the iminoiodane or benzoquinone, followed by conjugate addition of the sulfonamide to the oxidized heteroaromatic compounds. These findings may have important mechanistic implications for metal-catalysed C‒H amination processes involving nitrene transfer from iminoiodanes to dihydroheteroanthracenes. Due to the weak C‒H bond, xanthene is an often-employed substrate in mechanistic studies of C‒H amination reactions, which are generally proposed to proceed via metal-catalysed nitrene insertion, especially for reactions involving nitrene or imido complexes that are less reactive (i.e. less strongly oxidizing). However, these substrates clearly undergo non-catalysed (proton-coupled) redox coupling with amines, thus providing alternative pathways to the widely assumed metal-catalysed pathways.

A novel production of monocyclic aromatic hydrocarbons via one-step catalytic conversion of pine sawdust and waste plastics over Pd/trap-HZSM-5

Fuel ◽  
2021 ◽  
Vol 293 ◽  
pp. 120503
Author(s):  
Wenjun Chen ◽  
Xingmin Xu ◽  
Changsen Zhang ◽  
Yaqi Feng ◽  
Yuhang Wang ◽  
...  
Keyword(s):  
Aromatic Hydrocarbons ◽  
Catalytic Conversion ◽  
Waste Plastics ◽  
Pine Sawdust ◽  
Monocyclic Aromatic Hydrocarbons ◽  
One Step
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