摘要
对顺丁烯二酐的紫外光照二聚反应条件进行了研究，得到的理想反应条件为：在０．８５ｍｏｌ／Ｌ顺丁烯二酐的乙酸乙酯溶液中，反应４～６ｈ，合成了顺，反，顺１，２，３，４环丁烷四甲酸二酐，产率达到１２．４８％，且原料回收简便。通过ＩＲ、ＭＳ、１ＨＮＭＲ确定了产物结构。
The synthesis of cis,trans,cis 1,2,3,4cyclobutanetetracarboxylic dianhydride through dimerization of maleic anhydride irradiated by UV light was studied.The suitable condition is that maleic anhydride is dissolved in ethyl acetate with a concentration of 0.85mol/L and the irradiation time is 46 hours.The yield is 12.48% and the raw material can be recovered easily.The structure of the product was identified by IR,\+1HNMR and MS.\=
出处
《精细化工》
EI
CAS
CSCD
北大核心
1999年第3期39-41,共3页
Fine Chemicals
关键词
顺丁烯二酐
环丁烷
四甲酸二酐
合成
maleic anhydride
dimerization
cis,trans,cis 1,2,3,4cyclobutane tetracarboxylic dianhydride
