Abstract: MS Analysis of Chlorinated N,N-Dimethylallylamine and the Mechanism of ChlorinationYuan Xizhao; Wang Meilan; Jing Zhizhong; Chen Suntan(Analysis and Test Centre, Wuhan University, Wuhan 430072, China)Guo Wensong, Zhou Xiunqing(Guizhou Research institute of Chemical industry, Guiyang 550002,China)Abstract:Four components have been separated by GC/MS in the reaction product of chlorinaton of N,N-Dimethylallylamine in acidic water solution, and the structural formulasof them deduced from their own low resolving mass spectra. The reaction mechanism ofchlorination has also been suggested accorting to the effect of neighbouring group participation.Keywords: chlorinated N. N-dimethylallylamine, mass spectrometry, neighbouringgroup paticipation