Geometries of the methoxy radical (X 2E and A 2A1 states) and the methoxide ion

1974 ◽  
Vol 96 (3) ◽  
pp. 656-659 ◽  
Author(s):  
David R. Yarkony ◽  
Henry F. Schaefer ◽  
Stephen Rothenberg
Keyword(s):  
Methoxy Radical ◽  
Methoxide Ion

ChemInform Abstract: GEOMETRIES OF THE METHOXY RADICAL (X(2)E AND A(2)A1 STATES) AND THE METHOXIDE ION

1974 ◽  
Vol 5 (16) ◽  
pp. no-no
Author(s):  
DAVID R. YARKONY ◽  
HENRY F. III SCHAEFER ◽  
STEPHEN ROTHENBERG
Keyword(s):  
Methoxy Radical ◽  
Methoxide Ion

Interaction of heterocycles and nucleophiles. II. Sigma complexes formed from methoxide ion and Methoxy-3,5-dinitropyridines in dimethyl sulphoxide

1970 ◽  
Vol 23 (5) ◽  
pp. 957 ◽  
Author(s):  
MEC Biffin ◽  
J Miller ◽  
AG Moritz ◽  
DB Paul
Keyword(s):  
Dimethyl Sulphoxide ◽  
No Conversion ◽  
Solvation Effects ◽  
Sigma Complexes ◽  
Sigma Complex ◽  
Methoxide Ion ◽  
Rearrangement Reactions

Contrasting behaviour is observed when 2- and 4-methoxy-3,5-dinitropyridine interact with methoxide ion in dimethyl sulphoxide. The 4-methoxy compound affords both methine and acetal sigma complexes, the latter being thermodynamically more stable. The interconversion is catalysed by methanol. Labelling experiments have established that the sigma complex from the 2-methoxypyridine is formed by addition at C6; no conversion into the acetal could be effected. These observations are rationalized in terms of differential steric and solvation effects. Demethylation and rearrangement reactions of 4-methoxy-3,5-dinitropyridine are reported.

Reaction of 1-methyl-2,3-dinitropyrrole with methoxide ion

1986 ◽  
Vol 51 (11) ◽  
pp. 2125-2126 ◽  
Author(s):  
Audrey Di Lorenzo ◽  
Paolo Mencarelli ◽  
Franco Stegel
Keyword(s):  
Methoxide Ion

Improved synthesis of anti-sesquinorbornene

1984 ◽  
Vol 62 (9) ◽  
pp. 1840-1844 ◽  
Author(s):  
Karl R. Kopecky ◽  
Alan J. Miller
Keyword(s):  
Acetic Acid ◽  
Sulfuric Acid ◽  
Carboxylic Acid ◽  
Lead Tetraacetate ◽  
Carboxyl Group ◽  
Silver Acetate ◽  
Benzenesulfonyl Chloride ◽  
Methoxide Ion ◽  
Hydrolysis Of ◽  
Monomethyl Ester

Treatment of methyl hydrogen decahydro-1,4:5,8-exo,endo-dimethanonaphthalene-4a,8a-dicarboxylate with lead tetraacetate in benzene – acetic acid replaces the carboxyl group by an acetoxy group. Hydrolysis of this product with 25% sulfuric acid at 130 °C forms 8a-hydroxydecahydro-1,4:5,8-exo,endo-dimethanonaphthalene-4a-carboxylic acid 10. The reaction between 10 and benzenesulfonyl chloride in pyridine containing triethylamine at 95 °C produces anti-sesquinorbornene 1 in 34% yield. In the absence of triethylamine 1 is converted to the hydrochloride. The iodohydroperoxide of 1 is converted by silver acetate at 0 °C to the diketone in a luminescent reaction. The 1,2-dioxetane could not be isolated. Decahydro-1,4:5,8-exo,exo-dimethanonaphthalene-4a,8a-dicarboxylic anhydride is converted slowly by methoxide ion in methanol at 150 °C to the monomethyl ester which then undergoes demethylation. The isomeric exo,endo anhydride undergoes reaction readily with methoxide ion at 80 °C.

Free jet-cooled laser-induced fluorescence spectrum of methoxy radical. 2. Rotational analysis of the ~A2A1 .tautm. ~X2E electronic transition

1989 ◽  
Vol 93 (6) ◽  
pp. 2266-2275 ◽  
Author(s):  
X. Liu ◽  
C. P. Damo ◽  
T. Y. D. Lin ◽  
Stephen C. Foster ◽  
Prabhakar Misra ◽  
...  
Keyword(s):  
Fluorescence Spectrum ◽  
Electronic Transition ◽  
Laser Induced Fluorescence ◽  
Rotational Analysis ◽  
Free Jet ◽  
Methoxy Radical

Study of ring closure reaction of substituted phenylN-(2-thiocarbamoylphenyl)carbamates catalysed by methoxide ion

2006 ◽  
Vol 19 (1) ◽  
pp. 61-67 ◽  
Author(s):  
Jiří Hanusek ◽  
Miloš Sedlák ◽  
Petr Jansa ◽  
Vojeslav Štěrba
Keyword(s):  
Ring Closure ◽  
Methoxide Ion

scholarly journals Atmospheric deuterium fractionation: HCHO and HCDO yields in the CH<sub>2</sub>DO+O<sub>2</sub> reaction

2007 ◽  
Vol 7 (4) ◽  
pp. 10019-10041 ◽  
Author(s):  
E. Nilsson ◽  
M. S. Johnson ◽  
F. Taketani ◽  
Y. Matsumi ◽  
M. D. Hurley ◽  
...  
Keyword(s):  
Hydrogen Atom ◽  
Ftir Spectroscopy ◽  
Molecular Oxygen ◽  
Molecular Hydrogen ◽  
Branching Ratio ◽  
Hydrogen Atom Transfer ◽  
Photochemical Oxidation ◽  
Oxidation Of Methane ◽  
Methoxy Radical ◽  
Deuterium Enrichment

Abstract. The formation of formaldehyde via hydrogen atom transfer from the methoxy radical to molecular oxygen is a key step in the atmospheric photochemical oxidation of methane, and in the propagation of deuterium from methane to molecular hydrogen. We report the results of the first investigation of the branching ratio for HCHO and HCDO formation in the CH2DO+O2 reaction. Labeled methoxy radicals (CH2DO) were generated in a photochemical reactor by photolysis of CH2DONO. HCHO and HCDO concentrations were measured using FTIR spectroscopy. Significant deuterium enrichment was seen in the formaldehyde product, from which we derive a branching ratio of 88.2±1.1% for HCDO and 11.8±1.1% for HCHO. The implications of this fractionation on the propagation of deuterium in the atmosphere are discussed.

Anomalous methoxy radical yields in the fluorine + methanol reaction. 2. Theory

1991 ◽  
Vol 95 (26) ◽  
pp. 10705-10713 ◽  
Author(s):  
William A. Glauser ◽  
M. L. Koszykowski
Keyword(s):  
Methoxy Radical
Sign in / Sign up

Export Citation Format

Share Document