Unmodified Nano-Powder Magnetite Catalyzes a Four- Component Aza-Sakurai Reaction
作者:Ricardo Martínez、Diego J. Ramón、Miguel Yus
DOI:10.1002/adsc.200800089
日期:2008.6.9
for an old material: magnetite is an excellent Lewis acid catalyst for the four-component aza-Sakurai reaction. The process could be repeated up to 15-times without losing effectiveness, with the catalyst recycling being as easy as the use of a simple magnet. The catalyst is selective and could discriminate between aldehyde and ketone functionalities, catalyzing first the reaction with the higher electrophilic
一种用于旧材料的新催化剂:磁铁矿是出色的路易斯酸催化剂,可用于四组分氮杂-樱井反应。该过程最多可重复15次,而不会降低效率,催化剂的回收与使用简单磁体一样容易。该催化剂是选择性的,可以区分醛和酮的官能度,首先催化与较高亲电醛的反应。