1，2，3，4－丁烷四羧酸二酐的制备

The preparation of 1, 2, 3,4-butanetetracarboxyl diankydride

本文从一般原料出发，经过三步合成出１，２，３，４－丁烷四羧酸二酐。它被广泛用作聚酚亚胺材料的单体，国内尚无市售，经元素分析，熔点，ＩＲ，ＮＭＲ表征，表明结果与预期产物相符。合成步骤简单，原料易得。

In this paper, 1, 2, 3, 4-butanetetracarboxyl dianhydride was prepared from butadiene and maleic anhydride. The product was characterized by elemental analysis,melting point, IR and NMR spectra and was found to be in accordance with the expected compound.