摘要
对环十二酮肟(A)及其行生物(B1~B9)进行了EIMS裂解规律的研究,十二酮肟环开裂后主要形成CnH2n-1C=NOH及CnH2nCNOH系列的离子,羟基转移后脱C7H14CN形成基峰.羟基氢原子被OC(O)R取代后,取代基的a位及等基裂解成为主要方式。
Cyclododecanoe oxime (,A)and its derivatives (,B),were analysed with mass spectrometer. The base peak(HOC4H8 m/z 73) was produced by acleavage,hydroxy transferring and loss of C7H14CN. The ions of (CnH2nC=NOH)+ and (CnH2nC=NOH)+ arise from a-cleavage of cyclododecanoe oxime. After the hydrogen of hydroxy was substitued with RC(O)O,the a-cleavage of carbonyl group and the benzyl cleavage were more importance.
出处
《质谱学报》
EI
CAS
CSCD
1997年第3期27-30,共4页
Journal of Chinese Mass Spectrometry Society
基金
北京中关村地区联合分析测试中心基金