1999
DOI: 10.1002/(sici)1097-0231(19990130)13:2<93::aid-rcm458>3.0.co;2-l
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Negative chemical ionisation and collision induced fragmentations of deprotonated hydroperoxides

Abstract: The mass spectra and the collisional induced dissociations (CID) of deprotonated hydroperoxides, generated by negative chemical ionisation (NCI) with methane as ionising reagent, have been examined. The chemical ionisation mass spectra of hydroperoxides show that the base peak corresponds to the [(MÀH)ÀO]À ion for all the compounds studied with the exception of t-butyl hydroperoxide. The O 2 H À ion is present in the spectra of all of these compounds that do not possess a phenyl group. This study provides deta… Show more

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Cited by 11 publications
(13 citation statements)
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“…All products were identified by GC-MS. Both hydroperoxides had been previously identified in our group by mass spectrometry [41].…”
Section: Instrumentation and Methodsmentioning
confidence: 86%
“…All products were identified by GC-MS. Both hydroperoxides had been previously identified in our group by mass spectrometry [41].…”
Section: Instrumentation and Methodsmentioning
confidence: 86%
“…The cyclohexyl and the cyclooctyl hydroperoxides were identified by GC-MS with methane negative ion ionisation and tandem mass spectrometry [19]. Other possible reaction products detectable by GC were not observed.…”
Section: Methodsmentioning
confidence: 99%
“…Aliquots were taken from reaction mixtures, at regular intervals, for peroxide determination. The cyclooctyl hydroperoxide was identified by two different methods: (a) reduction with triphenylphosphine to Scheme 1. give cyclooctanol [2,13] and (b) GC-MS, using previous identification of cyclooctyl hydroperoxide mass spectrum [5].…”
Section: Oxidation Proceduresmentioning
confidence: 99%
“…A possible way to improve selectivity can be through the selective decomposition of alkyl hydroperoxides formed during the oxidation reactions. One of the targets of our recent research is the finding of Keggin-type polyoxotungstates that can afford good selectivity towards formation of alkyl hydroperoxides in the catalytic oxidation of cycloalkanes [4][5][6][7]. Several catalysts have been described for the oxygenation of alkanes with tert-butyl hydroperoxide or hydrogen peroxide [1,2,8,9].…”
Section: Introductionmentioning
confidence: 99%
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