摘要
以吡啶和丁烷-1,4-磺酸内酯为原料,制备了4种B rφnsted酸性功能离子液体,并用于抗氧剂330:1,3,5-三甲基-2,4,6-三(3,5-二叔丁基-4-羟基苄基)苯的催化合成。系统考察了催化剂用量、反应温度、反应时间、催化剂重复使用对收率的影响。结果表明,在0℃,以CH2C l2为辅助溶剂,n([N-C4H8SO3HPyrid ine](HSO4-)∶n(1,3,5-三甲基苯)∶n(3,5-二叔丁基-4-羟基苄甲醚)=1∶3∶10,反应3 h,收率可达89.6%。
Four kinds of Brφnsted acidic functional ionic liquids were prepared from pyridine and butane-1,4-sultone.These ionic liquids were employed to catalyze an electrophilic substitution reaction to synthesize 1,3,5-trimethyl-2,4,6-tris（3,5-di-tertbutyl-4-hydroxybenzyl）benzene antioxidant 330.The optimal reaction conditions are：n（[N-C4H8SO3HPyridine]^﹢HSO4^-）∶n（1,3,5-trimethylbenzene）∶n（3,5-di-tertbutyl-4-hydroxybenzyl methyl ether）=1∶3∶10,CH2Cl2 as co-solvent,reaction temperature 0 ℃ and reaction time 3 h.The yield is 89.6%.
出处
《精细化工》
CAS
CSCD
北大核心
2008年第8期806-809,共4页
Fine Chemicals
