Amine grafted pore-expanded MCM-41 as base catalysts

摘要：

Pore-expanded MCM-41 silica (PE-MCM-41), which in addition to high surface area(>1000 m2/g) combines large pores (up to 25 nm) and pore volume (up to 3.5 cm3/g) was used to immobilize various amine groups of different basic strengths.These amine-grafted materials showed high activity as base catalysts for Knoevenagel condensation between aldehydes or ketones and ethylcyanoacetate (ECA). The PE-MCM-41 silica grafted with primary amine in dry toluene showed the highest activity per amine group, followed in order by primary-secondary (diamine), secondary and tertiary amine.

作者: Dharani D. Das Abdelhamid Sayari

作者单位: Reactor and Catalysis Engineering (R&CE), DelftChemTech, Technische Universiteit Delft, Julianalaan 136, 2628 BL, Delft, The Netherlands

会议类型: 国际会议

会议名称: 第15届国际分子筛大会

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-12（万方平台首次上网日期，不代表论文的发表时间）