Abstract
ABSTRACT To evaluate the rol of different types of compounds, normally present in gasolines, during the deposit formation in engine admission systems, reactions between benzothiophene oxides with 1-octene and toluene were carried out under reflux conditions, using carbon tetrachloride as solvent. Samples of the reaction mixture were taken at 24 hr and identification was made by pyrolisis/ gas chromatography/mass spectrometry (Py/GC/MS) and mass spectrometry/mass spectrometry (MS-MS)The olefin sample reaction showed the formation of high molecular weight sulfur compound. This compound was identified as octane benzothiophene dioxide. No reaction product with toluene was found. Mechanisms of formation are proposed and the new intermediate compound was identified by MS-MS.
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