Asymmetric Hydrogenation of Ethyl Pyruvate on Chirally Modified Pt Catalysts Supported on Al2O3@FDU-14 Mesoporous Composites
نویسندگان
چکیده
منابع مشابه
Observation of high enantioselectivity for the gas phase hydrogenation of methyl pyruvate using supported Pt catalysts pre-modified with cinchonidine.
Pt supported on alpha-Al2O3, gamma-Al2O3 and SiO2 pre-modified with cinchonidine gives over 50% ee in the hydrogenation of methyl pyruvate to methyl lactate using gas phase reactants at 40 degrees C giving the first clear observation of high enantioselection at the gas/solid interface.
متن کاملCrucial aspects in the design of chirally modified noble metal catalysts for asymmetric hydrogenation of activated ketones.
In view of the importance of optically pure chiral products there is ample reason to develop methods that facilitate their efficient production. Compared to the mostly applied homogeneous catalysts based on transition metals coordinated to suitable chiral ligands, heterogeneous chiral catalysts could offer several features that are beneficial for practical application such as stability, ease of...
متن کاملAsymmetric Hydrogenation Catalysts
Iridium complexes with chiral N,P ligands have established themselves as efficient catalysts for the asymmetric hydrogenation of olefins, with largely complementary scope to Rh and Ru diphosphane complexes. In contrast to Rh and Ru catalysts, they do not require a coordinating polar group next to the C=C bond. Initial experiments with cationic phosphanyloxazoline (phox) complexes ([Ir(1)(cod)]X...
متن کاملCoupled hydrogenation and ring opening of tetralin on potassium modified Pt/USY catalysts
Huaijun Ma, Xiaomei Yang, Guodong Wen, Ge Tian, Lei Wang, Yunpeng Xu, Bingchun Wang, Zhijian Tian,* and Liwu Lin Laboratory of Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, P.R. China Graduate School of Chinese Academy of Sciences, Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, P.R. China State Key Laborato...
متن کاملAsymmetric transfer hydrogenation over Ru-TsDPEN catalysts supported on siliceous mesocellular foam.
A siliceous mesocellular foam-immobilized Ru-TsDPEN complex exhibited excellent catalytic reactivity, enantioselectivity and reusability in the asymmetric transfer hydrogenation of an imine and ketones.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Chinese Journal of Catalysis
سال: 2011
ISSN: 1872-2067
DOI: 10.1016/s1872-2067(10)60274-4