- 作者: 劉高家秀; 羅芬台
- 作者服務機構: 國立清華大學化學系
- 中文摘要: (順式)-2-苯-乙烯-1-烷基硫醚類可用苯乙炔與硫醇在乙醇鈉的乙醇溶液中迥流製得,此法之選擇性佳且收率高。此類硫醚化合物質譜之特點如下:(l)皆給多量的分子離子。(2)斷裂型式以β-位置之氫轉移並掉下烯類之馬克拉夫特式轉移為最重要。(3)碳硫鍵之斷裂以掉下烷基生成PhCH=CHS離子為主。(4)其他斷裂包括由分子離子脫去烷類,及α-位斷裂等。這些斷裂型式皆可用電子撞擊時以產生安定之離子,中性分子及自由基之質譜原則來解釋。
- 英文摘要: (Z)-1-Alkanesulfenyl-2-phenylethenes have been synthesized in good yields. Studies between struc-ture correlation and their fragmentation patterns upon electron impact have been carried out. Alkeneelimination, which occurs through a McLafferty rearrangement is the most facile process in these styrylthioethers. Other highlights in the spectra include abundant molecular ions, direct loss of the alkyl group,alkane elimination and α-cleavages.
- 中文關鍵字: --
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