74-99-7Relevant articles and documents
Murphy,Toogood
, p. 755 (1971)
The isotope exchange reaction of fast hydrogen atoms with deuterated alkynes and alkenes
Johnston, Grace W.,Satyapal, Sunita,Bersohn, Richard,Katz, Benjamin
, p. 206 - 212 (1990)
The exchange reaction H (1 eV) + RD -> RH + D, where RD was deuterated acetylene, methylacetylene, ethylene, and propylene was studied by laser induced fluorescence detection of the hydrogen and deuterium atoms.The reaction cross sections were 1.69 +/- 0.
Krause et al.
, p. 227,229-234 (1978)
Rearrangement of a Metal (η2-Alkyne) Complex to a Metal Vinylidene and Subsequent Reaction of the Metal Vinylidene to Regenerate the Alkyne
Bullock, R. Morris
, p. 165 - 167 (1989)
The η2-alkyne complex (C5H5)(PMe3)2Ru(HC(*)CMe)+PF6-, which was isolated from a reaction of HC(*)CMe with (C5H5)(PMe3)2RuCl, undergoes first-order rearrangement to give (C5H5)(PMe3)2Ru=C=C(H)Me+PF6-;
Direct Evidence on the Mechanism of Methane Conversion under Non-oxidative Conditions over Iron-modified Silica: The Role of Propargyl Radicals Unveiled
?ot, Petr,Hemberger, Patrick,Pan, Zeyou,Paunovi?, Vladimir,Puente-Urbina, Allen,van Bokhoven, Jeroen Anton
supporting information, p. 24002 - 24007 (2021/10/01)
Radical-mediated gas-phase reactions play an important role in the conversion of methane under non-oxidative conditions into olefins and aromatics over iron-modified silica catalysts. Herein, we use operando photoelectron photoion coincidence spectroscopy to disentangle the elusive C2+ radical intermediates participating in the complex gas-phase reaction network. Our experiments pinpoint different C2-C5 radical species that allow for a stepwise growth of the hydrocarbon chains. Propargyl radicals (H2C?C≡C?H) are identified as essential precursors for the formation of aromatics, which then contribute to the formation of heavier hydrocarbon products via hydrogen abstraction–acetylene addition routes (HACA mechanism). These results provide comprehensive mechanistic insights that are relevant for the development of methane valorization processes.
METHOD FOR PREPARATION OF NANOCERIA SUPPORTED ATOMIC NOBLE METAL CATALYSTS AND THE APPLICATION OF PLATINUM SINGLE ATOM CATALYSTS FOR DIRECT METHANE CONVERSION
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Page/Page column 17, (2019/09/12)
Described are methods for converting methane to olefins, aromatics, or a combination thereof using a single atom catalyst comprising CeO2 nanoparticles impregnated with individual atoms of noble metals including Pt, Pd, Rh, Ru, Ag, Au, Ir, or a combination thereof. These single atom catalysts of the present invention are heated with methane to form olefins and aromatics.
METHOD FOR PRODUCING ACETYLENE COMPOUND
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Paragraph 0043; 0050; 0051, (2017/02/23)
PROBLEM TO BE SOLVED: To provide a method for producing an acetylene compound. SOLUTION: A method for producing an acetylene compound comprises a first step of obtaining a cesium compound-supported alumina catalyst by burning a solid that is obtained by supporting a cesium compound on an alumina carrier at 150-400°C, and a second step of isomerizing an allene compound in the presence of the catalyst obtained in the first step. SELECTED DRAWING: None COPYRIGHT: (C)2016,JPOandINPIT