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作者提出了一种用“远端基团修饰法”来确定双键位置的新途径.长链不饱和脂肪酸环化为相应的2-烯基杂环化合物后,这些杂环母核的强大的正荷定域作用使产物的质谱的结构专一性大为提高,并能直接提供有关双键位置的信息.本文报道了微量衍生化方法与八类代表性杂环衍生物与四种苯并噁唑衍生物的质谱比较.
The authors propose a new way of determining the position of a double bond using “distal group modification.” After the cyclization of the long-chain unsaturated fatty acid to the corresponding 2-alkenyl heterocyclic compound, the strong The charge-domain effect makes the structure specificity of the mass spectrum greatly improved, and can directly provide information about the position of the double bond.This paper reports the micro-derivatization method with eight kinds of representative heterocyclic derivatives and four kinds of benzo Mass Spectra Comparison of Oxazole Derivatives.