Mass spectra of some 1-substituted-4-acetoacetyl-3-methylpyrazol-5-ols (original) (raw)

Electron impact, chemical ionization and collisional activation mass spectrometry of methylO-acetyl-β-D-xylopyranosides

Igor Tvaroška

Biological Mass Spectrometry, 1985

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New fragmentation pathways in the electron impact mass spectrometry of derivatized pyrano-1,3-diphenylprop-2-enones

Sunil Sharma

Organic Mass Spectrometry, 1993

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Electronic substituent effects in the electron impact mass spectrometry of 2-(arylazo)-4-phenylphenols

Guadalupe Perez Caballero

Rapid Communications in Mass Spectrometry, 2005

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Electron impact and chemical ionization mass spectra of N- alkyl and N,N-dialkylaminosugar derivatives

José Candela

European Journal of Mass Spectrometry, 1995

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Electron impact mass spectrometric investigation of pyrrole mono-, di- and tri-carboxylic acids

Antonella Bertazzo

Organic Mass Spectrometry, 1991

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Mass spectra of aryl substituted oxazolidones

Robert Auerbach

Organic Mass Spectrometry, 1970

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Electron impact mass spectrometry of substituted 1,2,4-triazine-3,5(2H,4H)-diobes

Eduardo Romero

Organic Mass Spectrometry, 1990

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Comparative electron impact, chemical ionization and fast atom bombardment mass spectra of Nα -(t-butyloxycarbonyl)-O-(di-t-butylphosphoro)-L-serine

Alan Chaffee

Organic Mass Spectrometry, 1988

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AM1 and electron impact mass spectrometry study of the fragmentation of 4-acyl isochroman-1,3-diones

Félix KINI

Bulletin of the Chemical Society of Ethiopia, 2012

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Mass spectrometric fragmentation of some arylidenecycloalkanones

Daniel Tal

The Journal of Organic Chemistry, 1977

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Studies in organic mass spectrometry. Part 27. Electron ionisation induced isomerisation of 3-aryl-4(3H)-quinazolinones?

Vita Di Stefano

Rapid Communications in Mass Spectrometry, 2001

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Electron impact induced fragmentation of some 7-(o- and p-R-benzylidene)-3-(o- and p-R-phenyl)-3,3a,4,5,6,7-hexahydro-2H-indazoles. I

Eduardo Cortes

Journal of Heterocyclic Chemistry, 1985

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Mass spectra of substituted pyrrolidine-N-oxyl radicals

Gyula Jerkovich

1990

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Electron impact mass spectrometry of substituted 1,3,8-triazaspiro[4,5]decan-4-ones

Federico Rubino

Biological Mass Spectrometry, 1989

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Electron impact mass spectra of 2-methoxycyciopropa11e carboxylic acids and of the corresponding methyl esters

Søren Bøwadt

Organic Mass Spectrometry, 1989

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Electron impact and chemical ionization mass spectra of norbornane/ene di-exo and di-endo-fused 1,3-oxazin-2(1H)-ones and 1,3-oxazine-2(1H)-thiones

Kalevi Pihlaja

Organic Mass Spectrometry, 1990

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Electron impact mass spectrometry of some 6-substituted tetrazolo[1,5-c]pyrimidin-5(6H)-ones

Krzysztof Ciszewski

Journal of Mass Spectrometry, 1993

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The fragmentation of 7-( o - and p -R-benzylidene)-3-( o - and p -R-phenyl)-2-methyl-3,3a,4,5,6,7-hexahydro-2 H -indazoles under electron impact. II

Eduardo Cortes

Journal of Heterocyclic Chemistry, 1986

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Electron impact mass spectrometry of some 2,11-diaza[3.3]cyclophane derivatives

Sebastiano Pappalardo

Biological Mass Spectrometry, 1989

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Mass spectra of aromatic 3-methylisoxazolo- and 2-methyloxazolopyridines

Fabio Ponticelli

Organic Mass Spectrometry, 1993

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Mass-spectrometric study of the products of intramolecular cyclization of 1,3-amido alcohols. 5-6-Dihydro-4H-1,3-oxazines and 2-oxazolines

Andrei Guzaev

Chemistry of Heterocyclic Compounds, 1988

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Contrast of photochemical and pyrolytic models for mass spectral fragmentation. Dealkylation of N-alkyl-2,4-diphenylpyrroles

Laurence R Dusold, Albert Padwa

Tetrahedron Letters, 1968

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Chromone Studies. Part 12. 1 Fragmentation Patterns in the Electron-impact Mass Spectra of 2-( N, N -Dialkylamino)-4 H -1-benzopyran-4-ones and -naphthopyran-4-ones

Isaiah Ramaite

2003

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Electron impact fragmentation of isomeric 2-diazo-2-cyanoacetamides and 4-cyano-5-hydroxy-l,2,3-triazoles

Albert Lebedev

Organic Mass Spectrometry, 1988

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Electron impact mass spectra of naturally occurring bornyl, 4-terpinenyl and α- terpinyl C3—C5 esters

valerio giannellini

Journal of Mass Spectrometry, 1981

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Fragmentation of certain substituted azadispiro(5.1.5.2)pentadec-9-ene and azadispiro(4.1.4.2)tridec-8-ene derivatives under electron ionization

Kunnath Madhusudanan

Organic Mass Spectrometry, 1989

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Electron-impact mass spectrometry of methyl O-methylglucopyranosiduranamides

Paul Kovac

Carbohydrate Research, 1979

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Electron ionization (EI) mass spectra of some 3,4-disubstituted-1,2,4-oxadiazin-5-ones and -thiones and 3,5-disubstituted 1,2,4-oxadiazin-6-ones

hikmet agirbas

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Mass spectrometric fragmentation patterns of isomeric 5-methyl-3-alkyl-2-alkenylpyrazines

Joseph Brophy

Organic Mass Spectrometry, 1989

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Mass spectrometric studies on 4-aryl-1-cyclopropyl-1,2-dihydropyridinyl derivatives: an examination of a novel fragmentation pathway

Philippe Bissel, Iulia M Lazar, Richard Gandour

Journal of Mass Spectrometry, 2006

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Comparative electron impact mass spectra of new 5-benzylidene-4,5-dihydro-(2H)-pyridazin-3-ones and 4-benzylidene-4,5-dihydrooxazin-6-ones

J. Taoufik

Organic Mass Spectrometry, 1991

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