【摘要】 本文报道18个含氟炔酮和炔醛类化合物的质谱及其解析结果。在含氟炔酮中,当全氟烷基联结于羰基碳或炔碳上时,质谱的断裂规律有所不同,观察到苯基或取代苯基或全氟烷基重排脱CO的碎片离子。在含氟炔醛中,出现脱CO和脱氟或部分氟碳烷基的碎片离子（CF₂C≡CH）⁺。另外亦出现脱氟或部分氟碳烷基的碎片离子（CF₂C≡CCHO）⁺,此碎片离子的相对丰度次序为:n-C₃F₇>C₂F₅>CF₃。在化合物5～15中,有氟重排离子（M-R¹R²+F）⁺出现。更多还原

【Abstract】 The mass spectra of eighteen fluorinated ynones and ynals（1～18）have been analyzed and the fragmentation patterns have been studied. Fluorinated ynones with perfluoroalkyl group linked to the carbonyl carbon or to the acetylenic carbon gave different results and ion formed from phenyl or substituted phenyl or perfluoroalkyl rearrangement by elimination of CO was observed. In fluorinated ynals, ion （CF₂C≡CH）⁺ formed by elimination of CO and fluorine atom or part of the fluoroalkyl group was observed. In addition, ion （CF₂C≡CCHO）⁺ formed by elimination of part of the fluoroalkyl group was observed. Its relative intensity had the following order: n-C₃F₇>C₂F₅>CF₃. In compounds 5～15, the ion （M-R¹R²+F）⁺was observed.更多还原