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Hydrogen bases

We have previously seen (Scheme 2.9, enby 6), that the dehydrohalogenation of alkyl halides is a stereospecific reaction involving an anti orientation of the proton and the halide leaving group in the transition state. The elimination reaction is also moderately stereoselective (Scheme 2.10, enby 1) in the sense that the more stable of the two alkene isomers is formed preferentially. Both isomers are formed by anti elimination processes, but these processes involve stereochemically distinct hydrogens. Base-catalyzed elimination of 2-iodobutane affords three times as much -2-butene as Z-2-butene. [Pg.100]

When the aziridinecarboxamide 44 a contains an anisyl or better a benzyl group at nitrogen instead of hydrogen, base treatment leads also to the formation of -lactams 47, in the latter case even exclusively (Scheme 37) [45,46]. [Pg.114]

A flow cell-procedure was then applied. The experiment consisted of (a) adsorption of methanol (in a solution containing deuterated methanol and light hydrogen base electrolyte), (b) solution exchange with base electrolyte and (c) application of two potential steps, one of short duration to oxidize the adsorbed residue and then a second one in the negative direction to reduce the ions H+ and/or D+ formed. During this time the mass intensity signals for HD, (m/e = 3) and for COz (m/e = 44) were... [Pg.146]

Agbossou K., Kolhe M.L., Hamelin J., Bernier E., Bose T.K., Electrolytic hydrogen based renewable energy system with oxygen recovery and re-utilisation, Ren. Energ., 29,1305-1318, 2004. [Pg.183]

Process flow schematic for the production of fuels, including hydrogen, based on biomass gasification. (Reproduced from Hamelinck, C., and Faaij, A.P.C. /. Power Sources, 111(1), 1-22,2002. With permission.)... [Pg.193]

Thomas, R.C. and Hughes, R.C., Sensors for Detecting Molecular Hydrogen Based on Pd Metal Alloys, Journal of Electrochemical Society, 144(9), 3245,1997. [Pg.533]

In addition, there will be a transition to a hydrogen-based economy. This market timeframe is most likely to see central and distributed generation integrated with fuel cell technologies. [Pg.322]

But, natural gas may be the wrong fuel on which to base a hydrogen-based transportation system. A large fraction of new U.S. natural gas consumption will probably need to be supplied from overseas. While these sources are more secure than the sources for oil, replacing one import with another does not move us towards energy independence. [Pg.140]

A hydrogen-based economy could be the ideal scenario for personal transportation. The ultimate goal is a fuel cell car that is competitive in price and performance with the internal combustion vehicle. Some early users will pay a premium for new technology, but most drivers will not pay 20-30% more for similar performance. [Pg.269]

Chapter 21 summarises the major findings and conclusions of the book and reflects critically on the perspectives of a transition to a hydrogen-based energy and transport system. [Pg.6]

The establishment of internationally harmonised and consistent regulations, codes and standards is essential for the commercialisation of hydrogen-based products and systems. [Pg.268]

Figure 10.4. Layout of a plant for the production of high purity hydrogen based on the staged-reforming process from D.M.2. Figure 10.4. Layout of a plant for the production of high purity hydrogen based on the staged-reforming process from D.M.2.
HySociety (The European hydrogen based society) (2004). Technology Database for Hydrogen Pathways, Analysis of Hydrogen Pathways. European Commission (DG TREN), FhG-ISI. www.eu.fhg.de/h2database/index.html. [Pg.346]

Krzyzanowski, D., Kypreos, S. and Barreto, L. (2008). Supporting hydrogen based transportation case studies with global MARKAL model. Computational Management Science, 5 (3), 207-231. [Pg.451]

The cheapest hydrogen-corridor options are hydrogen based on hydropower from Romania, the Ukraine and Bulgaria, followed by hydrogen from hydropower and geothermal power in... [Pg.520]

HySociety (2004). Promoting a hydrogen-based society, www.ec.europa.eu/research/ energy/pdf/efchp hydrogen21.pdf. [Pg.561]


See other pages where Hydrogen bases is mentioned: [Pg.9]    [Pg.4]    [Pg.214]    [Pg.162]    [Pg.1180]    [Pg.8]    [Pg.345]    [Pg.145]    [Pg.21]    [Pg.24]    [Pg.187]    [Pg.217]    [Pg.298]    [Pg.299]    [Pg.381]    [Pg.398]    [Pg.401]    [Pg.403]    [Pg.432]    [Pg.484]    [Pg.1267]    [Pg.1483]    [Pg.485]    [Pg.451]    [Pg.28]    [Pg.2]    [Pg.32]    [Pg.39]    [Pg.135]    [Pg.161]    [Pg.192]    [Pg.255]    [Pg.267]    [Pg.443]    [Pg.563]   
See also in sourсe #XX -- [ Pg.168 , Pg.169 , Pg.170 , Pg.171 , Pg.172 , Pg.173 , Pg.174 , Pg.175 , Pg.176 , Pg.177 , Pg.201 ]




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Acid-base chemistry hydrogen bond

Acid-base chemistry hydrogen bond donor

Acid-base chemistry hydrogen bonding

Acid-base interactions hydrogen bonds

Acid-base properties, binary hydrogen compounds

Acid-base-coupled hydrogen bonding

Active hydrogen compounds base catalyst condensation

Active hydrogen compounds base-catalyzed

An advanced sensor for hydrogen peroxide based on Prussian blue

Analyzer hydrogen-based

Asymmetric Synthesis Based on Hydrogen Transfer

Base pair duplex oligonucleotides, hydrogen

Base pair hydrogen bond interactions

Base pair hydrogen bonding

Base pairs hydrogen bonding parameters

Base pairs hydrogen-bonded structures

Base-catalysed hydrogen exchange

Base-catalyzed hydrogen exchange

Base-catalyzed hydrogen exchange rates

Base-catalyzed hydrogen isotope

Base-catalyzed hydrogen isotope aromatics

Base-catalyzed hydrogen isotope exchange

Base-catalyzed hydrogen isotope preparation

Bases hydrogen bonding

Bases hydrogen ions released

Carbon-Nitrogen Bond Formation Based on Hydrogen Transfer

Carbon-based membrane reactors hydrogen production reactions

Case - Use of Carbon Nanotube-Based Catalysts in Hydrogen Production

Cobalt-based Fischer-Tropsch synthesis hydrogenation

Cobalt-based hydrogenation catalysts

Comb copolymers, block copolymer-based hydrogen-bonded

Computational Studies of Organocatalytic Processes Based on Hydrogen Bonding

Contribution of hydrogen-based propulsion systems

Copper-based hydrogenation catalysts

Crown ether based receptors hydrogen bonding

Crystals Based on Intrinsic Hydrogen-Bonding Characteristics (Lacking Preorganization)

Demonstration of Up-scaled Hydrogen Production by Palladium-based Membrane Reactors

Electroactive-inorganic-polycrystals-based chemical hydrogen peroxide, advanced sensor for

Enantioselective Hydrogenation of Alkenes with Ferrocene-Based Ligands

Enantioselective hydrogenation ferrocene-based ligands

Energy economy hydrogen-based

Ferrocene based anion receptors hydrogen bonding

General, Non-Base-Pairing Hydrogen Bonds

Hard acids, soft bases, hydrogen bonds between

Hard-soft-acid-base concept hydrogenation

Heterogeneous hydrogenation catalysts based on quartz

Hydrogen Permeation Mechanism in Pd-Based Membranes

Hydrogen Production Using Pd-Based Membranes

Hydrogen Storage in Carbon-Based Adsorbents

Hydrogen acid-base reactions

Hydrogen base-catalyzed

Hydrogen based energy systems

Hydrogen bond DNA base pairs and

Hydrogen bond base pairs

Hydrogen bond descriptor-based approaches

Hydrogen bonding amide based synthesis

Hydrogen bonding base pairing

Hydrogen bonding between complementary base pairs

Hydrogen bonding in nucleic acid bases

Hydrogen bonding nucleic acid base pairs

Hydrogen bonding of nucleotide base pairs

Hydrogen bonding patterns, base pairs

Hydrogen bonding peptide-based amphiphiles

Hydrogen coal-based

Hydrogen exchange base catalysis

Hydrogen exchange base-catalyzed, stereochemistry

Hydrogen exchange, base-catalyzed 1,2,4-triazines

Hydrogen exchange, base-catalyzed azoles

Hydrogen exchange, base-catalyzed azolium ions

Hydrogen fluoride acid-base behaviour

Hydrogen ion acid-base reactions

Hydrogen oxidation reaction tungsten-based catalysts

Hydrogen palladium-based membrane integration

Hydrogen peroxide acid/base properties

Hydrogen peroxide based

Hydrogen peroxide based epoxidation

Hydrogen peroxide based propylene oxide

Hydrogen peroxide electrodes based

Hydrogen peroxide electrodes based enzyme

Hydrogen peroxide electrodes based networks

Hydrogen peroxide electrodes based operation

Hydrogen peroxide electrodes based redox centers

Hydrogen peroxide reaction with base

Hydrogen production from palladium-based

Hydrogen quantum theory based

Hydrogen separation membrane-based approaches

Hydrogen separation palladium-based

Hydrogen storage carbon-based materials

Hydrogen-Bonded Pairs of Bases

Hydrogen-based autonomous power

Hydrogen-based autonomous power systems

Hydrogen-based economy

Hydrogen-bond-based Assemblies

Hydrogen-bonded DNA base pairs

Hydrogen-bonded base pairing, alternative

Hydrogen-bonded base pairing, alternative schemes

Hydrogen-bonded base pairs

Hydrogen-bonded supramolecules polymer-based

Hydrogen-bonding-based tapes

Hydrogen-deuterium exchange, base

Hydrogen-deuterium exchange, base catalyzed

Hydrogenated polymers, ruthenium-based

Hydrogenation, base catalyzed

Hydrogenation, base catalyzed Subject

Industrial hydrogen-based fuel

Integration of Palladium-based Membranes in Hydrogen Production

Key Elements of a Hydrogen-Based Transportation System

Liquid-Phase Oxidations with Hydrogen Peroxide and Molecular Oxygen Catalyzed by Polyoxometalate-Based Compounds

Manganese-based Oxidation with Hydrogen Peroxide

Mannich bases hydrogen compounds

Membrane biofilm reactors hydrogen-based

Metabolism hydrogen based

Metal NPs Supported in G-Based Materials as Catalyst for Hydrogen Release

Metal-based hydrogen-bonding anion receptors

Modelling of carbon-based materials for hydrogen storage

Multiple hydrogen bonding based

OUR FUTURE ECONOMY MAY BE BASED ON HYDROGEN

Other practical initiator systems based on hydrogen abstraction

Palladium -based hydrogen sensors

Palladium-based Selective Membranes for Hydrogen Production

Palladium-based composite membranes for hydrogen separation in membrane reactors

Palladium-based membranes hydrogen selective membrane

Palladium-based membranes hydrogen separation

Palladium-based membranes hydrogen transport

Pd-Based Membranes in Hydrogen Production for Fuel cells

Perovskite-based hydrogen membranes

Phosphorus-based catalysts hydrogenation

Polymer-based hydrogenation catalyst

Prussian blue-based hydrogen peroxide transducer

Purine bases hydrogen-bonding possibilities

Pyridazine 1-oxides base-catalyzed hydrogen-exchange

Pyridazines base-catalyzed hydrogen exchange

Pyrimidine bases hydrogen-bonding possibilities

Pyrimidines base-catalyzed hydrogen exchange

Sandias Hydrogen-based Analyzer

Schiff base ligands hydrogenation

Schiff base protonation, hydrogen bonds

Schiff bases catalytic hydrogenation

Schiff bases homogeneous hydrogenation

Schiff bases hydrogenation

Shell based hydrogen plant

Solid Electrolyte-Based Hydrogen Sensors

Strategies to Build up Supramolecular Macrocycles Based on Hydrogen Bonds

Threading hydrogen-bonding based

Transition based anion receptors, hydrogen

Transition based anion receptors, hydrogen bonding

Water, acid-base behavior hydrogen bond

Watson-Crick base pairs hydrogen bond stabilization

Watson-Crick base-pair, hydrogen bonding

With Acylating Agents Followed by Acids, Bases, or Hydrogen Peroxide (for Pyrimidin-4-ones)

Zeolite-based membranes hydrogen

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