L-Proline supported on nano gold surface in PEG-400 catalyst system has been developed for use in the direct aldol condensation of acetone with aldehydes. Successful immobilization on surface of gold nanoparticles was confirmed using multiple analytical techniques. The supported catalyst could be separated from the reaction mixture by filtration, and could be reused five times with negligible loss in activity.
                                    在P
EG-400催化体系中,支持在纳米
金表面的
L-脯氨酸已被开发用于醛与
丙酮的直接 aldol 缩合反应。通过多种分析技术确认了在
金纳米粒子表面的成功固定。支持的催化剂可以通过过滤从反应混合物中分离,并且可以重复使用五次,活性损失极小。