scholarly journals Formic acid catalyzed isomerization and adduct formation of an isoprene-derived Criegee intermediate: experiment and theory

2020 ◽  
Vol 22 (46) ◽  
pp. 26796-26805
Author(s):  
Michael F. Vansco ◽  
Rebecca L. Caravan ◽  
Shubhrangshu Pandit ◽  
Kristen Zuraski ◽  
Frank A. F. Winiberg ◽  
...  
Keyword(s):  
Formic Acid ◽  
Adduct Formation ◽  
Reaction Pathways ◽  
Acid Acid ◽  
Acid Catalyzed

Investigation of key reaction pathways for an isoprene-derived Criegee intermediate with formic acid: acid catalyzed isomerization and adduct formation.

Electro-oxidation of formic acid catalyzed by FePt nanoparticles

2006 ◽  
Vol 8 (23) ◽  
pp. 2779 ◽  
Author(s):  
Wei Chen ◽  
Jaemin Kim ◽  
Shouheng Sun ◽  
Shaowei Chen
Keyword(s):  
Formic Acid ◽  
Fept Nanoparticles ◽  
Electro Oxidation ◽  
Acid Catalyzed

Acid-catalyzed Solvolysis of Isonitriles. I

1971 ◽  
Vol 49 (14) ◽  
pp. 2455-2459 ◽  
Author(s):  
Y. Y. Lim ◽  
A. R. Stein
Keyword(s):  
Formic Acid ◽  
Acid Catalysis ◽  
Hydrolysis Product ◽  
Rate Dependence ◽  
Linear Rate ◽  
First Order ◽  
Methyl Amine ◽  
Acid Catalyzed ◽  
Pseudo First Order ◽  
Hydrolysis Of

The acid-catalyzed hydrolysis of methyl isonitrile has been examined. The initial hydrolysis product is N-methylformamide which is further hydrolyzed to methyl amine and formic acid at a much slower rate. The hydrolysis to N-methylformamide is pseudo-first order in methyl isonitrile and shows a linear rate dependence on concentration of general (buffer) acid at fixed pH. The significance of general acid-catalysis in terms of the mechanism of the hydrolysis is considered and taken as evidence for carbon protonation rather than nitrogen protonation as the initiating step.

Special behavior of octamethylbiphenylene in acid. Acid-catalyzed electron transfer

1981 ◽  
Vol 103 (4) ◽  
pp. 903-906 ◽  
Author(s):  
Harold Hart ◽  
Avraham Teuerstein ◽  
Mary Ann Babin
Keyword(s):  
Electron Transfer ◽  
Acid Acid ◽  
Acid Catalyzed

Room Temperature Reduction of Graphene Oxide by Formic Acid Catalyzed by Platinum Nanoparticles

2013 ◽  
Vol 13 (4) ◽  
pp. 2967-2973 ◽  
Author(s):  
Yinjie Wang ◽  
Jincheng Liu ◽  
Lei Liu ◽  
Tong Zhang ◽  
Darren D. Sun
Keyword(s):  
Graphene Oxide ◽  
Formic Acid ◽  
Platinum Nanoparticles ◽  
Room Temperature ◽  
Temperature Reduction ◽  
Acid Catalyzed

Acid‐Acid‐Catalyzed Tandem Reactions Driven by an Additive‐like Component

2020 ◽  
Author(s):  
Shaomin Chen ◽  
Rongxian Bai ◽  
Minghao Li ◽  
Ping Liu ◽  
Yanlong Gu
Keyword(s):  
Tandem Reactions ◽  
Acid Acid ◽  
Acid Catalyzed

Chromium-catalysed efficient N-formylation of amines with a recyclable polyoxometalate-supported green catalyst

2021 ◽  
Vol 50 (1) ◽  
pp. 90-94
Author(s):  
Demin Dan ◽  
Fubo Chen ◽  
Whenshu Zhao ◽  
Han Yu ◽  
Sheng Han ◽  
...  
Keyword(s):  
Formic Acid ◽  
Green Catalyst ◽  
Chromium Catalyst ◽  
Acid Catalyzed

A simple and efficient protocol for the formylation of amines with formic acid, catalyzed by a polyoxometalate-based chromium catalyst, is described.

Ambident reactivity in the reaction of phenoxide ion with 2-N-(2′,4′-dinitrophenyl)- and 2-N-(4′-nitrophenyl)-4,6-dinitrobenzotriazole 1-oxides, new superelectrophiles

1988 ◽  
Vol 66 (7) ◽  
pp. 1712-1719 ◽  
Author(s):  
Erwin Buncel ◽  
Julian M. Dust
Keyword(s):  
Activation Energy ◽  
Adduct Formation ◽  
Reaction Pathways ◽  
Resonance Spectroscopy ◽  
The Novel ◽  
Reaction Series ◽  
Bond Scission ◽  
Energy Reaction ◽  
Successive Removal ◽  
Ambident Nucleophile

Reaction of the novel superelectrophiles 2-N-(2′,4′-dinitrophenyl)- and 2-N-(4′-nitrophenyl)-4,6-dinitrobenzotriazole 1-oxides, 3, and 4, possessing two electrophilic centres, with the ambident nucleophile potassium phenoxide in (CD3)2SO was followed by 400 MHz 1H nuclear magnetic resonance spectroscopy. A dichotomy in the reaction pathways has been observed. With MeO−, attack at C-7 leads to reversible adduct formation, while attack at C-1′ results in irreversible N-2: C-1′ bond scission via the metastable C-1′ adduct. In contrast, the reaction of 3 and 4 with PhO− proceeds by a two-pronged attack: formation of C-7 carbon-bonded phenoxide adducts via the ortho and para carbon sites, and oxygen-based cleavage products by attack at the C-1′ position, accompanied by N-2:C-1′ bond scission, in accord with the ambident reactivity of PhO−. Significantly, in this case reaction of both C-7 and C-1′ is effectively irreversible. Moreover, the reaction of phenoxide with either 3 or 4 shows striking differences compared to the reaction of PhO− with 2-N-(picryl)-4,6-dinitrobenzotriazole 1-oxide, 1. Reaction of PhO− with 1 resulted only in O-attack at C-1′ and N-2:C-1′ bond scission; there was no evidence for C-7 adduct formation via O- or C-attack. This marked difference in behaviour can be attributed to the decreased susceptibility to C-1′ attack exhibited by 3 and 4 as compared to 1 and arises from the successive removal of electron-withdrawing nitro groups from the 2-N′-nitroaryl moiety in the series 1 → 3 → 4. The reactions are discussed on the basis of selectivity considerations and an activation energy/reaction coordinate profile comparing the pathways for both C-attack at C-7 and O-attack at C-l′ as electrophilicity (delocalizability) is progressively modulated in the reaction series.

scholarly journals Theoretical kinetic study of the formic acid catalyzed Criegee intermediate isomerization: multistructural anharmonicity and atmospheric implications

2018 ◽  
Vol 20 (16) ◽  
pp. 10806-10814 ◽  
Author(s):  
M. Monge-Palacios ◽  
Matti P. Rissanen ◽  
Zhandong Wang ◽  
S. Mani Sarathy
Keyword(s):  
Carbon Atom ◽  
Formic Acid ◽  
Kinetic Study ◽  
Theoretical Study ◽  
Isomerization Reaction ◽  
Hydrogen Shift ◽  
Acid Catalyzed ◽  
Double Hydrogen

We performed a theoretical study on the double hydrogen shift isomerization reaction of a six carbon atom Criegee intermediate (C6-CI), catalyzed by formic acid (HCOOH), to produce vinylhydroperoxide (VHP), C6-CI + HCOOH → VHP + HCOOH.

Hydrogenation of CO2 to formic acid catalyzed by heterogeneous Ru-PPh3/Al2O3 catalysts

2018 ◽  
Vol 178 ◽  
pp. 98-103 ◽  
Author(s):  
Wenjing Zhang ◽  
Shengping Wang ◽  
Yujun Zhao ◽  
Xinbin Ma
Keyword(s):  
Formic Acid ◽  
Hydrogenation Of Co2 ◽  
Acid Catalyzed
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