1-苯甲酰基-5-芳基-2-硫代双缩脲类化合物的质谱研究

Mass Spectra of 1-Benzoyl-5-Aryl-2-Thiobiurets

本文报道了1-苯甲酰基-5-芳基-2硫代双缩脲类化合物的电子轰击质谱。根据高分辨质谱及联动扫描质谱揭示了该类化合物的质谱裂解途径，结果表明该类化合物均能出现较强的分子离子峰，其基峰为［PhCO］＋，裂解主要发生在数基的a-位，而硫羰基的a－位不发生断裂。

The rnass spectra of 1-benzoyl-5-aryl-2-thiobiurets were reported. The mass spectral fragmentation was proposed on the basis of the high resolution mass spectrometry and the B/E linked scan spectra. The results show that 1-benzoyl-5-aryl-2-thiobiurets have strong molecular ion,the base peak is [PhCO]+,the cleavages take place at Q-position of carbonyl group;on the other hand,the bond between thiocarbonyl group and nitrogen atom can not break in the experimental condition.