Abstract:A method for the separation and identification of aldehyde isomers depends upon the separation of an isomer approximately 90% pure b y large volume gas-liquid partition chromatography. The separated aldehyde is examined by nuclear magnetic resonance to determine the number of a-hydrogens, CHa-, CHx-, and CHgroups and by infrared spectroscopy to establish the presence or absence of -(CH2)3-or -(CH2)n-groups, where R is equal to or greater than 4. Finally, the aldehyde is reduced to a hydrocarbon by the Wolff-Ki… Show more
“…The only structure which is consistent with the presence of these structural groups is that of 2-methyl-l-hexene. A similar treatment of the data for the peak 12 fraction leads to the structural group assignments shown in Table II. The only structure consistent with the presence of these structural groups is that of 2-ethyl-lpentene.…”
A novel combination of gas chromatography and nuclear magnetic resonance spectrometry was used for the analysis of a sample of C7 olefins. Sample components were identified by correlating gas chromatographic
“…The only structure which is consistent with the presence of these structural groups is that of 2-methyl-l-hexene. A similar treatment of the data for the peak 12 fraction leads to the structural group assignments shown in Table II. The only structure consistent with the presence of these structural groups is that of 2-ethyl-lpentene.…”
A novel combination of gas chromatography and nuclear magnetic resonance spectrometry was used for the analysis of a sample of C7 olefins. Sample components were identified by correlating gas chromatographic
“…Gas-liquid chromatography (GLC) separated compounds which were then collected and identified through functional group analysis. Isomeric aldehydes were separated by this technique and the fractions collected (44)• The aldehydes underwent a Wolff-Kishner reduction to hydrocarbons and were compared with API standards to identify the isomers.…”
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