Reusable 1,2,4-Triazolium Based Brønsted Acidic Room Temperature Ionic Liquids as Catalyst for Mannich Base Reaction
作者:Sankaranarayanan Nagarajan、Elango Kandasamy
DOI:10.1007/s10562-014-1312-7
日期:2014.9
Unprecedented examples of 1-alkyl-1,2,4-triazolium methanesulfonate based Brønsted acidic room temperature ionicliquids were synthesized and characterized. Their catalytic activity and efficiency in recyclability and reusability on one pot synthesis of halide substituted β-amino carbonyl compounds are reported.Graphical Abstract
Choline-based biodegradable ionic liquid catalyst for Mannich-type reaction
作者:PENG HUAN、HU YULIN、XING RONG、FANG DONG
DOI:10.1007/s12039-016-1199-5
日期:2016.12
A three-component Mannich-typereaction of aromatic aldehydes, ketones, and amines was catalyzed by a novel choline-based acidic ionic liquid. The proposed catalyst was a Lewis-Brønsted dual acid catalyst as well as water-tolerant. The β-amino carbonyl compounds were obtained at room temperature in reasonable to good yields ranging from 63 to 98%. After the reaction, the catalyst could be recycled
Highly Efficient One-pot Synthesis, Antimicrobial and Docking Studies of Newer β-amino Carbonyl Derivatives Catalyzed by Silica Sulfuric Acid
作者:Kh. A. M. El-Bayouki、W. M. Basyouni、A. S. El-Sayed、W. M. Tohamy、A. A. El-Henawy
DOI:10.5562/cca1983
日期:——
acid for the synthesis of β-amino carbonyl derivatives. Reaction time and yield of the products depended on the nature of acetophenone and aniline subsituents. Using aliphatic amines instead of aromatic amines under same reaction conditions, afforded aldol condensation products without yielding the expected β-amino ketones. Replacing the acetophenone derivatives with rhodanine yielded 5-(4-fluoroben