碳酸二甲酯法制备1,5-萘二氨基甲酸甲酯中间产物的结构表征

The Characterization of the Intermediate Produced in the Synthesis of 1, 5-Naphthalene Dicarbamate by Dimethylcarbonate Method

研究发现,由碳酸二甲酯与1,5-萘二胺合成1,5-萘二氨基甲酸甲酯的反应是一个经过中间产物的串联反应。关于这个中间产物,在目前现有的各种文献中未见报道。本文利用萃取、结晶等分离手段提纯出了该中间产物,并通过质谱、元素分析、红外光谱以及核磁共振谱等分析方法对其组成和结构进行了测定,结果表明该中间产物的分子量为216,组成为C12H12N2O2,结构为5-氨基-萘基-1-氨基甲酸甲酯。

It was found that the reaction of 1,5-naphthalene diamine （NDA） with dimethylcarbonate （DMC） to produce 1, 5-naphthalene dicarbamate was a series reaction through an intermediate. The intermediate was purified through extraction and crystallization and characterized by mass spectra, element analysis, Fourier transform infrared spectra and ^1H nuclear magnetic resonance spectroscopy, the result indicats that the intermediate of the reaction is 5-amino-naphthalene-l-carbamate （ANC） with a molecular weight of 216 and a composing of C12H12N2O2.