Ce-Al-MCM-41: an efficient catalyst for Mukaiyama-Michael reaction
The activity of cerium containing Al-MCM-41 mesoporous materials has been studied for carbon-carbon bond formation reaction like Mukaiyama-Michael reaction under mild liquid phase conditions. The catalysts were synthesized by hydrothermal method at 383 K for 24-36 h in Teflon-lined autoclave and characterized thoroughly by XRD, UV-VIS, TEM, EPR, XPS, 27Al NMR, NH3-TPD, pyridine-IR and AAS in order to obtain well-ordered M41S type materials. The Mukiayama-Michael reactions between silyl enol ether and , -unsaturated ketones give Michael product in very good yields (100％ selectivity). The catalysts were reusable.
Pranjal Kalita Rajiv Kumar
Catalysis Division, National Chemical Laboratory, Pune, 411008, India
国际会议
北京
英文
2007-08-12（万方平台首次上网日期，不代表论文的发表时间）