1,2-二氯乙醇醋酸酯可作为有机合成中间体和医药中间体,主要用于实验室研发过程及化工医药生产过程中。
类别:有毒物品
毒性分级:高毒
急性毒性:吸入 - 大鼠 LCL0: 16 PPM/4小时
可燃性危险特性:明火可燃;高热分解产生有毒氯化物烟雾
储运特性:库房需通风、低温干燥,应与氧化剂和食品添加剂分开存放
灭火剂:干粉、泡沫、二氧化碳、砂土
The 3-step synthesis of furylpyridines is described, using ethyl pyridinoylacetates as starting materials for 2-furyl compounds and chloroacetylpyridines for 3-furyl isomers. Furthermore, these last compounds were prepared by a convenient new method for 3-substituted furan synthesis. This synthesis starts from bromopyridines and proceeds through the key intermediates (2,2-diethoxyacetyl)pyridines and methyl 2-(x-pyridyl)-4,4-diethoxy-2-methoxy-2-butenoates. The physical properties of the furylpyridines have been determined. Structures and interactions between furan and pyridine rings have been discussed by comparing their uv spectra, basicity constants, and dipole moments with those of phenyl and thienylpyridines.