FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2047564154> ?p ?o ?g. }

• W2047564154 abstract "The 12.1 eV, 75°C electron impact mass spectra of 24 urethanes, RNHCO2C2H5 [R H, C2H2n +1 (n = 1-8), CH2CHCH2, Ph, PhCH2 and PhCH2CH2], and seven symmetrically disubstituted urethanes R2NCO2C2H5 (R Cn H2n + 1 (n = 1−4)) are reported and discussed. All 31 spectra show appreciable molecular ion peaks. For n −Cn H2n +1 NHCO2C2H5, M+ ˙ usually is the most abundant ion in the spectrum. A peak at m/z 102 of comparable intensity also is present; this corresponds to formal cleavage of the bond connecting the α- and β-carbon atoms in the N-alkyl group, though it is unlikely that the daughter ion has the structure [CH2NHCO2C2H5]+. In the RNHCO2C2H5 series, branching at the α-carbon atom enhances the relative abundance of the ion arising by notional α-cleavage at the expense of that of M+ ˙. Formal cleavage of the bond between β- and γ-carbon atoms occurs to some extent for [RNHCO2C2H5]+˙ ions; this reaction provides information on the degree of branching at the β-carbon, especially if metastable molecular ions are considered. The higher n-CnH2n +1NHCO2C2H5 (n = 5−8) urethanes exhibit two other significant ions in their mass spectra. First, there is a peak at [M C2H5]+. Secondly, a peak is present at m/z 90; the most plausible structure for this ion is [H2N(HO)COC2H5]+, arising by double hydrogen transfer from the alkyl group and expulsion of a [CnH2n −1]˙ radical. Ions originating from secondary decomposition of the primary ionic species are generally of only very low abundance in these spectra." @default.
• W2047564154 created "2016-06-24" @default.
• W2047564154 creator A5024721166 @default.
• W2047564154 creator A5072377380 @default.
• W2047564154 date "1989-02-01" @default.
• W2047564154 modified "2023-09-24" @default.
• W2047564154 title "Low-energy, low-temperature mass spectra. 10—urethanes" @default.
• W2047564154 cites W1567674237 @default.
• W2047564154 cites W1971159003 @default.
• W2047564154 cites W1977375774 @default.
• W2047564154 cites W1990069498 @default.
• W2047564154 cites W1990957479 @default.
• W2047564154 cites W1998579312 @default.
• W2047564154 cites W2000017638 @default.
• W2047564154 cites W2014068249 @default.
• W2047564154 cites W2022464228 @default.
• W2047564154 cites W2029632916 @default.
• W2047564154 cites W2030230761 @default.
• W2047564154 cites W2042178054 @default.
• W2047564154 cites W2053757835 @default.
• W2047564154 cites W2056618931 @default.
• W2047564154 cites W2057903276 @default.
• W2047564154 cites W2065454475 @default.
• W2047564154 cites W2065623046 @default.
• W2047564154 cites W2067735700 @default.
• W2047564154 cites W2068705550 @default.
• W2047564154 cites W2068935705 @default.
• W2047564154 cites W2070929151 @default.
• W2047564154 cites W2076790483 @default.
• W2047564154 cites W2083169349 @default.
• W2047564154 cites W2085776968 @default.
• W2047564154 cites W2111195438 @default.
• W2047564154 cites W2625446175 @default.
• W2047564154 cites W2949540287 @default.
• W2047564154 cites W2953278499 @default.
• W2047564154 cites W3004971949 @default.
• W2047564154 cites W4211138144 @default.
• W2047564154 cites W4233577063 @default.
• W2047564154 doi "https://doi.org/10.1002/oms.1210240210" @default.
• W2047564154 hasPublicationYear "1989" @default.
• W2047564154 type Work @default.
• W2047564154 sameAs 2047564154 @default.
• W2047564154 citedByCount "2" @default.
• W2047564154 crossrefType "journal-article" @default.
• W2047564154 hasAuthorship W2047564154A5024721166 @default.
• W2047564154 hasAuthorship W2047564154A5072377380 @default.
• W2047564154 hasConcept C113196181 @default.
• W2047564154 hasConcept C121332964 @default.
• W2047564154 hasConcept C1276947 @default.
• W2047564154 hasConcept C145148216 @default.
• W2047564154 hasConcept C161790260 @default.
• W2047564154 hasConcept C178790620 @default.
• W2047564154 hasConcept C185592680 @default.
• W2047564154 hasConcept C198291218 @default.
• W2047564154 hasConcept C205759337 @default.
• W2047564154 hasConcept C206175624 @default.
• W2047564154 hasConcept C2182769 @default.
• W2047564154 hasConcept C2776640939 @default.
• W2047564154 hasConcept C2780263894 @default.
• W2047564154 hasConcept C3044715 @default.
• W2047564154 hasConcept C40325409 @default.
• W2047564154 hasConcept C4839761 @default.
• W2047564154 hasConcept C66594872 @default.
• W2047564154 hasConcept C8010536 @default.
• W2047564154 hasConcept C89464430 @default.
• W2047564154 hasConceptScore W2047564154C113196181 @default.
• W2047564154 hasConceptScore W2047564154C121332964 @default.
• W2047564154 hasConceptScore W2047564154C1276947 @default.
• W2047564154 hasConceptScore W2047564154C145148216 @default.
• W2047564154 hasConceptScore W2047564154C161790260 @default.
• W2047564154 hasConceptScore W2047564154C178790620 @default.
• W2047564154 hasConceptScore W2047564154C185592680 @default.
• W2047564154 hasConceptScore W2047564154C198291218 @default.
• W2047564154 hasConceptScore W2047564154C205759337 @default.
• W2047564154 hasConceptScore W2047564154C206175624 @default.
• W2047564154 hasConceptScore W2047564154C2182769 @default.
• W2047564154 hasConceptScore W2047564154C2776640939 @default.
• W2047564154 hasConceptScore W2047564154C2780263894 @default.
• W2047564154 hasConceptScore W2047564154C3044715 @default.
• W2047564154 hasConceptScore W2047564154C40325409 @default.
• W2047564154 hasConceptScore W2047564154C4839761 @default.
• W2047564154 hasConceptScore W2047564154C66594872 @default.
• W2047564154 hasConceptScore W2047564154C8010536 @default.
• W2047564154 hasConceptScore W2047564154C89464430 @default.
• W2047564154 hasLocation W20475641541 @default.
• W2047564154 hasOpenAccess W2047564154 @default.
• W2047564154 hasPrimaryLocation W20475641541 @default.
• W2047564154 hasRelatedWork W1973168154 @default.
• W2047564154 hasRelatedWork W1979711876 @default.
• W2047564154 hasRelatedWork W1999280710 @default.
• W2047564154 hasRelatedWork W2001870196 @default.
• W2047564154 hasRelatedWork W2016569105 @default.
• W2047564154 hasRelatedWork W2020043970 @default.
• W2047564154 hasRelatedWork W2023385983 @default.
• W2047564154 hasRelatedWork W2039435315 @default.
• W2047564154 hasRelatedWork W2049309031 @default.
• W2047564154 hasRelatedWork W2054799447 @default.
• W2047564154 hasRelatedWork W2055875358 @default.
• W2047564154 hasRelatedWork W2080947704 @default.
• W2047564154 hasRelatedWork W2098845773 @default.

• next