Sulfonic Acid Functionalized Silica: A Mild, Reusable and Efficient Heterogeneous Catalyst for the Highly Diastereoselective Synthesis of cis-Isoquinolonic Acids
作者:Ali Karimi、Rahim Pashazadeh
DOI:10.1055/s-0029-1218595
日期:2010.2
Sulfonic acidfunctionalized silica (SAFS) is found to be a recyclable heterogeneous catalyst for the rapid and efficient synthesis of various cis-isoquinolonic acidsfrom the three-component condensation reaction of homophthalic anhydride, an amine, and an aldehyde. This reaction was highlydiastereoselective and only one diastereomer was obtained in all cases. sulfonic acidfunctionalized silica -