A novel and robust heterogeneous Cu catalyst using modified lignosulfonate as support for the synthesis of nitrogen-containing heterocycles
作者:Bingbing Lai、Meng Ye、Ping Liu、Minghao Li、Rongxian Bai、Yanlong Gu
DOI:10.3762/bjoc.16.238
日期:——
A waste biomass, sodium lignosulfonate, was treated with sodium 2-formylbenzenesulfonate, and the phenylaldehyde condensation product was then used as a robust supporting material to immobilize a copper species. The so-obtained catalyst was characterized by many physicochemical methods including FTIR, EA, FSEM, FTEM, XPS, and TG. This catalyst exhibited excellent catalytic activity in the synthesis
用2-甲酰基苯磺酸钠处理废生物质木质素磺酸钠,然后将苯醛缩合产物用作坚固的支撑材料,以固定铜物种。如此获得的催化剂通过许多物理化学方法进行了表征,包括FTIR,EA,FSEM,FTEM,XPS和TG。该催化剂在合成含氮杂环(例如带有3,4-稠合七元环,2-芳基吡啶,氨基萘和3-苯基异喹啉的三环吲哚)中表现出出色的催化活性。另外,该催化剂显示出可回收利用,并且可以在反应过程中多次重复使用而活性没有明显损失。