Comparative Studies on Mass Spectrometric Fragmentation of Linear Chiral Secondary Alcohols (R)-1-(4-Alkylphenyl) and (R)-1-(4-Alkoxyphenyl/Alkylthiophenyl) Alcohols  

作　　者：ZHANG Qi-han SU Xian-bin XU Jia-xi 

机构地区：[1]Key Laboratory of Bioorganic Chemistry and Molecular Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P.R. China

出　　处：《Chemical Research in Chinese Universities》2006年第3期347-350,共4页高等学校化学研究（英文版）

基　　金：SupportedbytheMinistryofEducationofP.R.China(SRFforROCSandEYTP)andPekingUniversity.

摘　　要：Mass spectrometric behaviour of （R） -1- （ 4-alkylphenyl ） alcohols, 1- （4-alkoxylphenyl） alcohols, and 1- （4-alkylthiophenyl） alcohols were studied with the aid of mass-analyzed ion kinetic energy spectrometry under electron impact ionization. All the title compounds show a tendency to eliminate a water molecule to form alkene ions and undergo an a-cleavago to produce protonated aldehyde ions by the loss of alkyl radicals. Except these two common fragment ions, they also show some different fragmentations due to with or without oxy/thioether-linkage.Mass spectrometric behaviour of （R） -1- （ 4-alkylphenyl ） alcohols, 1- （4-alkoxylphenyl） alcohols, and 1- （4-alkylthiophenyl） alcohols were studied with the aid of mass-analyzed ion kinetic energy spectrometry under electron impact ionization. All the title compounds show a tendency to eliminate a water molecule to form alkene ions and undergo an a-cleavago to produce protonated aldehyde ions by the loss of alkyl radicals. Except these two common fragment ions, they also show some different fragmentations due to with or without oxy/thioether-linkage.

关 键 词：1-（4-Alkylphenyl） alcohol 1-（4-Alkoxylphenyl） alcohol 1-（4-Alkylthiophenyl） alcohol Electron impact ionization Fragmentation mechanism Mass spectrometry 

分 类 号：O625.34[理学—有机化学] O657.63[理学—化学]