冠醚类化合物与碱金属离子的快原子轰击质谱

A Study on Mass Spectra of Organophasphorous Compounds(XⅢ). The EIMS of 1, 3, 2-Diazaphospholidin-4-one Derivatives

在冠醚类化合物中同时加入适量的ＫＢｒ和ＮａＣｌ的水溶液时，其ＦＡＢ谱中会出现［Ｍ＋Ｋ］＋和［Ｍ＋Ｎａ］＋强峰，由于这２个峰的质量之差为１６ａｍｕ而容易辨认，这尤其适于对一个未知化合物分子量的推定。

The electron impact mass spectra of nine new phosphorus-containing heterocyclic compounds were reported. The general fragmentation mechanisms and mass spectral behaviors were studied by using high resolution precise mass determination and linked scan techniques. Some skeleton rearrangement reactions and the ring-opening reactions were discussed in detail.