用于双酚芴合成的离子液体催化剂的制备  

Ionic liquid catalyst for the synthesis of bisphenolfluorene

作　　者：魏佳伦 于丽梅[1,2] 闫磊 高占先[1,2] WEI Jia-lun;YU Li-mei;YAN Lei;GAO Zhan-xian(School of Chemical Engineering,Dalian University of Technology,Dalian 116024,China;State Key Laboratory of Fine Chemicals,Dalian University of Technology,Dalian 116024,China)

机构地区：[1]大连理工大学化工学院,辽宁大连116024 [2]大连理工大学精细化工国家重点实验室,辽宁大连116024

出　　处：《现代化工》2022年第5期206-211,共6页Modern Chemical Industry

摘　　要：设计、合成了含—SO_(3)H和—SH结构的双功能化离子液体1-(3-磺酸基丙基)-2-巯基苯并噻唑硫酸氢盐,并利用IR、NMR谱和热失重法对其结构和热稳定性进行表征。用该离子液体催化双酚芴合成反应,9-芴酮转化率可达100%,双酚芴选择性为90.1%。用离子液体的酸度H_(0)关联芳杂环上磺酸基的催化能力,用"有效巯基含量"估计芳杂环上巯基的助催化剂作用,并探讨了双功能化离子液体催化合成双酚芴的机理。1-(3-Sulfopropyl)-2-mercaptobenzothiazole hydrogen sulfate containing—SO_(3)H and—SH,a bifunctional ionic liquid,is designed and synthesized.Its structure and thermal stability are characterized by IR,NMR and TG.When using the ionic liquid to catalyze the synthesis reaction of bisphenolfluorene,the conversion rate of 9-fluorenone reaches 100%and the selectivity of bisphenolfluorene reaches 90.1%.The acidity H_(0) of the ionic liquid is used to judge the catalytic effect of the sulfonic group attached to the aromatic heterocyclic ring,and“the content of effective mercapto group”is taken to estimate the co-catalyst effect of the mercapto group attached to the aromatic heterocyclic ring.The mechanism for the synthesis of bisphenolfluorene over the bifunctional ionic liquid is elucidated.

关 键 词：磺酸基 巯基 双功能化离子液体 催化剂 双酚芴 

分 类 号：O621.251[理学—有机化学]