Reaction on a solid surface — A simple, economical, and efficient Mannich reaction of azacrown ethers over graphite
作者:Hashem Sharghi、Reza Khalifeh
DOI:10.1139/v08-026
日期:2008.5.1
Graphite brings about a rapid Mannichreaction with a range of activated and unactivated phenolic compounds such as p-cresol and p-nitrophenol. The reactions are carried out with azacrown ether and paraformaldehyde in solvent-free conditions at 100 °C for 20–30 min. The graphite powder can be reused up to three times after simple washing with acetone.Key words: azacrown ether, lariat ether, graphite