β-羟基亚胺类化合物的合成及其锂化合物催化异氰酸酯三聚反应  

Synthesis of β-Hydroxyimines and Trimerization of Isocyanates Catalysized by β-Hydroxyimidolithium Complexes

作　　者：王松[1] 申剑[1] 郭志强[1] 魏学红[1] 

机构地区：[1]山西大学应用化学研究所,山西太原030006

出　　处：《山西大学学报（自然科学版）》2012年第1期96-99,共4页Journal of Shanxi University(Natural Science Edition)

基　　金：山西省自然科学基金(2008011021;2008012013-2);山西省回国留学基金

摘　　要：以苯乙酮和芳香胺化合物通过缩合反应合成相应的亚胺化合物,再用二异丙胺基锂去质子后与二苯甲酮反应,然后水解,合成了三个β-羟基亚胺类化合物.进一步研究了β-羟基亚胺锂化合物对芳香异氰酸酯三聚合成异氰脲酸酯的催化效果.实验结果表明,在室温条件下,当催化剂用量为0.1%,反应时间为2h时,催化剂1有较好的催化效果,芳香异氰酸酯苯环上有吸电子的取代基时,催化效果最好,产率可达到96%以上.Three of β-hydroxyimine compounds were synthesized from the reaction of imine deprotonized by the lithium diisopropylamide with benzophenone,and following with hydrolysis.The corresponding imine compounds were obtained by treatment of acetophenone and arylamine in toluene.The trimerization of isocyanates catalysized by β-hydroxyimine lithium complexes were also investigated.It was found that the catalyst 1 have a good yield when the catalyst is 0.1mol% for 2 h at room temperature.The produced yield is up to 96% when aryl isocyanates with electron-withdrawing substituents on the aromatic ring.

关 键 词：β-羟基亚胺类配体 异氰酸酯 异氰脲酸酯 催化 

分 类 号：O627.1[理学—有机化学]