区域选择性合成二苯并[d,f][1,3]二噁烷  

Regioselective Synthesis of Dibenzo [d,f][1,3] dioxepines

作　　者：张宝华[1] 史兰香[1] ZHANG Baohua;SHI Lanxiang(College of Chemical Engineering,Shijiazhuang University,Shijiazhuang 050035,China)

机构地区：[1]石家庄学院化工学院,石家庄050035

出　　处：《应用化学》2018年第11期1331-1334,共4页Chinese Journal of Applied Chemistry

摘　　要：针对二苯并[d,f][1,3]二噁烷传统制备方法中易产生二羟基联苯乙烯副产物的缺点,本文以路易斯酸性胍盐离子液体为催化剂,2,2'-二羟基联苯和端基炔为原料,高区域选择性的合成了二苯并[d,f][1,3]二噁烷,收率39%～84%。本方法适用于各种端基炔。路易斯酸性胍盐离子液体循环利用5次,活性不变。In order to overcome the shortcomings of facile production of dihydroxy diphenyl ethylene by-product in traditional method,dibenzo[d,f][1,3]dioxepines was synthesized highly regioselectively from a broad range of terminal alkynes with Lewis acidic guanidinium ionic liquid catalyst in 39%~84%yields.The Lewis acidic guanidinium ionic liquid can be reused five times without significantly decrease in catalytic activity.

关 键 词：胍盐离子液体 二苯并[d f][1 3]二噁烷 二羟基联苯 端基炔 

分 类 号：O621.2[理学—有机化学]