Matches in SemOpenAlex for { <https://semopenalex.org/work/W2078262444> ?p ?o ?g. }
Showing items 1 to 82 of
82
with 100 items per page.
- W2078262444 abstract "Enol esters with a remote keto function in the δ-position produce upon electron impact (EI) (70 eV) molecular ions of very low abundance (< 1%) due to two fast main fragmentations. The first one involves loss of a carboxylic acid fragment from the α-carbon and subsequent cyclisation to a stable furan ion. A second, more abundant, fragmentation leads, by loss of ketene and an acyl moiety, to a protonated α,β-enone. The stability of this ion is governed by the substituents in the βand γ-positions, which thus determine the order in which a ketene or an acyl radical is lost. Mass-analysed ion kinetic energy (MIKE) spectra of the most abundant ions were also recorded. In one case, a perfect match was found between the collisional activation (CA) mass spectrum of the most abundant ion of one enol-ester under EI conditions and the CA mass spectrum of the corresponding protonated α,β-enone obtained under chemical ionisation (CI) conditions. The fragmentation mechanisms were also inferred from the spectra of two deuterium-labelled δ-keto enol esters." @default.
- W2078262444 created "2016-06-24" @default.
- W2078262444 creator A5052844512 @default.
- W2078262444 creator A5084881346 @default.
- W2078262444 date "1996-01-01" @default.
- W2078262444 modified "2023-09-24" @default.
- W2078262444 title "Electron impact mass spectra of δ-keto enol esters" @default.
- W2078262444 doi "https://doi.org/10.1255/ejms.63" @default.
- W2078262444 hasPublicationYear "1996" @default.
- W2078262444 type Work @default.
- W2078262444 sameAs 2078262444 @default.
- W2078262444 citedByCount "0" @default.
- W2078262444 crossrefType "journal-article" @default.
- W2078262444 hasAuthorship W2078262444A5052844512 @default.
- W2078262444 hasAuthorship W2078262444A5084881346 @default.
- W2078262444 hasConcept C111919701 @default.
- W2078262444 hasConcept C145148216 @default.
- W2078262444 hasConcept C155647269 @default.
- W2078262444 hasConcept C161790260 @default.
- W2078262444 hasConcept C162356407 @default.
- W2078262444 hasConcept C178790620 @default.
- W2078262444 hasConcept C185592680 @default.
- W2078262444 hasConcept C191015642 @default.
- W2078262444 hasConcept C198291218 @default.
- W2078262444 hasConcept C205759337 @default.
- W2078262444 hasConcept C2776568683 @default.
- W2078262444 hasConcept C2777495281 @default.
- W2078262444 hasConcept C2778874822 @default.
- W2078262444 hasConcept C2779746879 @default.
- W2078262444 hasConcept C30095370 @default.
- W2078262444 hasConcept C40325409 @default.
- W2078262444 hasConcept C41008148 @default.
- W2078262444 hasConcept C43617362 @default.
- W2078262444 hasConcept C71240020 @default.
- W2078262444 hasConcept C75473681 @default.
- W2078262444 hasConceptScore W2078262444C111919701 @default.
- W2078262444 hasConceptScore W2078262444C145148216 @default.
- W2078262444 hasConceptScore W2078262444C155647269 @default.
- W2078262444 hasConceptScore W2078262444C161790260 @default.
- W2078262444 hasConceptScore W2078262444C162356407 @default.
- W2078262444 hasConceptScore W2078262444C178790620 @default.
- W2078262444 hasConceptScore W2078262444C185592680 @default.
- W2078262444 hasConceptScore W2078262444C191015642 @default.
- W2078262444 hasConceptScore W2078262444C198291218 @default.
- W2078262444 hasConceptScore W2078262444C205759337 @default.
- W2078262444 hasConceptScore W2078262444C2776568683 @default.
- W2078262444 hasConceptScore W2078262444C2777495281 @default.
- W2078262444 hasConceptScore W2078262444C2778874822 @default.
- W2078262444 hasConceptScore W2078262444C2779746879 @default.
- W2078262444 hasConceptScore W2078262444C30095370 @default.
- W2078262444 hasConceptScore W2078262444C40325409 @default.
- W2078262444 hasConceptScore W2078262444C41008148 @default.
- W2078262444 hasConceptScore W2078262444C43617362 @default.
- W2078262444 hasConceptScore W2078262444C71240020 @default.
- W2078262444 hasConceptScore W2078262444C75473681 @default.
- W2078262444 hasLocation W20782624441 @default.
- W2078262444 hasOpenAccess W2078262444 @default.
- W2078262444 hasPrimaryLocation W20782624441 @default.
- W2078262444 hasRelatedWork W160467969 @default.
- W2078262444 hasRelatedWork W1885743233 @default.
- W2078262444 hasRelatedWork W1968298010 @default.
- W2078262444 hasRelatedWork W1983585323 @default.
- W2078262444 hasRelatedWork W1989741567 @default.
- W2078262444 hasRelatedWork W2003986763 @default.
- W2078262444 hasRelatedWork W2005229253 @default.
- W2078262444 hasRelatedWork W2009028353 @default.
- W2078262444 hasRelatedWork W2024314298 @default.
- W2078262444 hasRelatedWork W2036741344 @default.
- W2078262444 hasRelatedWork W2040794051 @default.
- W2078262444 hasRelatedWork W2041131795 @default.
- W2078262444 hasRelatedWork W2042043134 @default.
- W2078262444 hasRelatedWork W2051002791 @default.
- W2078262444 hasRelatedWork W2063685407 @default.
- W2078262444 hasRelatedWork W2077959524 @default.
- W2078262444 hasRelatedWork W2092066733 @default.
- W2078262444 hasRelatedWork W2118259368 @default.
- W2078262444 hasRelatedWork W2339970689 @default.
- W2078262444 hasRelatedWork W2377877427 @default.
- W2078262444 isParatext "false" @default.
- W2078262444 isRetracted "false" @default.
- W2078262444 magId "2078262444" @default.
- W2078262444 workType "article" @default.