ChemInform Abstract: Isomerization of Methyl Formate to Acetic Acid.

ChemInform ◽  
2010 ◽  
Vol 22 (25) ◽  
pp. no-no
Author(s):  
G. JENNER
Keyword(s):  
Acetic Acid ◽  
Methyl Formate

scholarly journals Interstellar Glycolaldehyde, Methyl Formate, and Acetic Acid. I. A Bimodal Abundance Pattern in Star-forming Regions

2019 ◽  
Vol 883 (2) ◽  
pp. 129 ◽  
Author(s):  
Samer J. El-Abd ◽  
Crystal L. Brogan ◽  
Todd R. Hunter ◽  
Eric R. Willis ◽  
Robin T. Garrod ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Methyl Formate ◽  
Abundance Pattern ◽  
Star Forming ◽  
Star Forming Regions

Destruction of C2H4O2 isomers in ice-phase by X-rays: Implication on the abundance of acetic acid and methyl formate in the interstellar medium

2017 ◽  
Vol 13 (S332) ◽  
pp. 418-424
Author(s):  
Marina G. Rachid ◽  
K. Faquine ◽  
S. Pilling
Keyword(s):  
Acetic Acid ◽  
Cross Sections ◽  
Methyl Formate ◽  
X Rays ◽  
Formation Cross Section ◽  
X Ray ◽  
Synchrotron Light ◽  
The Difference ◽  
Astrophysical Ices

AbstractC2H4O2 isomers, methyl formate (HCOOCH3), acetic acid (CH3COOH) and glycoaldehyde (HOCH2CHO), have been detected in a lot of sources in ISM. However, their abundances are very different, with methyl formate much more abundant than the other two isomers. This fact may be related to the different destruction by ionizing radiation of these molecules. The goal of this work is experimentally study the photodissociation processes of methyl formate and acetic acid ices when exposed to broadband soft X-ray from 6 up to 2000 eV. The experiments were performed coupled to the SGM beamline in the Brazilian Synchrotron Light Source (LNLS/CNPEM) at Campinas, Brazil. The simulated astrophysical ices (12K) were monitored throughout the experiment using infrared vibrational spectroscopy. The analysis of processed ices allowed the determination of the effective destruction cross sections of the parent molecules as well as the effective formation cross section of daughter molecular species. The relative abundance between acetic acid and methyl formate (NCH3COOH/NHCOOCH3) in different astronomical scenarios and their column density evolution in the presence of X-rays were calculated and our results suggests that such radiation field can be one of the factors that explain the difference in the isomers C2H4O2 abundances. We also quantified the daugther species after the establishment of a chemical equilibrium in the samples.

Photochemistry of a-diketones. I. Some photochemical reactions of 1,1,4,4-Tetramethyl-2,3-dioxotetralin

1967 ◽  
Vol 20 (8) ◽  
pp. 1671 ◽  
Author(s):  
GE Gream ◽  
JC Paice ◽  
CCR Ramsay
Keyword(s):  
Carbon Monoxide ◽  
Acetic Acid ◽  
Carbonyl Group ◽  
Methyl Formate ◽  
Photochemical Reactions ◽  
Hydroxy Ketones ◽  
Competing Reactions

The photochemical reactions (at λ > 3000 A) of the non-enolizable α- diketone (XIV) have been investigated in the solvents methanol, isopropanol. cyclohexane, toluene, n-butyraldehyde, methyl formate, acetic acid, dioxan, and benzene. In general, selective 1,2-addition of solvent to one carbonyl group to give a-hydroxy ketones is the predominant reaction. Competing reactions include reduction to the acyloin (XXI) and loss of carbon monoxide to give 1,1,3,3- tetramethylindanone (XVII). In methanol, two isomeric diols (XXIII) and (XXIV) were unexpectedly formed.

scholarly journals XAS and RIXS study of acetic acid and methyl formate in liquid

2016 ◽  
Vol 712 ◽  
pp. 012040 ◽  
Author(s):  
O Takahashi ◽  
N Nishida ◽  
S Kanai ◽  
Y Horikawa ◽  
T Tokushima
Keyword(s):  
Acetic Acid ◽  
Methyl Formate

A selected ion flow tube study of the reactions of various nitrogen containing ions with formic acid, acetic acid, and methyl formate

2005 ◽  
Vol 247 (1-3) ◽  
pp. 55-60 ◽  
Author(s):  
Douglas M. Jackson ◽  
Nathan J. Stibrich ◽  
Jason L. McLain ◽  
Lillian D. Fondren ◽  
Nigel G. Adams ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Formic Acid ◽  
Methyl Formate ◽  
Flow Tube ◽  
Ion Flow ◽  
Selected Ion Flow Tube ◽  
Tube Study
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