傅利叶变换质谱法鉴定对硝基肉桂醛的合成产物

Identification of Synthetic Product from p Nitrocinnamaldehyde by Fourier Transform Mass Spectrometry

摘要: 在合成３－甲氨基－１－（对硝基苯基）丙烯时，反应最终产物经傅利叶变换质谱法鉴定，其精确分子离子质量为２２３．０８３８０１，分子式为Ｃ１１Ｈ１３ＮＯ４，误差为０．４９ｐｐｍ，与预期产物不符。经重氢交换同位素标记质谱确定，分子中不含有活泼氢。通过质谱分析，实际产物为３，３－二甲氧基－１－（对硝基苯基）丙烯。质子核磁共振谱、红外光谱进一步验证了推断结构的正确性。本法借助傅利叶变换质谱仪，操作简便，快速，结果准确。

Abstract: methylamino-1-(-p-nitrophenyl) propene was predicted as the product of a certain synthesis whose reactant was p nitrocinnamaldehyde. By FTMS, the real product was identified to be 3,3-dimethoxy) 1-(-p-nitrophenyl) propene. FTMS provided