Simple and scalable preparation of highly active Lewis acidic Sn-β.

Tin goes in: The solid Lewis acid Sn-zeolite β is obtained in a simple and scalable procedure (see scheme). A high metal content can be obtained, without undesirable side-effects. The space-time-yields of the resulting catalysis are over one order-of-magnitude larger than those of the state-of-the-art materials for the Baeyer–Villiger oxidation of cyclohexanone and the synthesis of ethyl lactate from the triose dihydroxyacetone.

[1]  Mark E. Davis,et al.  Activation of Carbonyl-Containing Molecules with Solid Lewis Acids in Aqueous Media , 2011 .

[2]  Steffen Oswald,et al.  Fast and selective sugar conversion to alkyl lactate and lactic acid with bifunctional carbon-silica catalysts. , 2012, Journal of the American Chemical Society.

[3]  Bert F. Sels,et al.  Selective conversion of trioses to lactates over Lewis acid heterogeneous catalysts , 2011 .

[4]  Jianmin Xiong,et al.  Zeolite-catalyzed isomerization of triose sugars. , 2009, ChemSusChem.

[5]  A. Corma,et al.  Al-free Sn-Beta zeolite as a catalyst for the selective reduction of carbonyl compounds (Meerwein-Ponndorf-Verley reaction). , 2002, Journal of the American Chemical Society.

[6]  T. Tatsumi,et al.  A Novel Titanosilicate with MWW Structure: II. Catalytic Properties in the Selective Oxidation of Alkenes , 2001 .

[7]  A. Corma,et al.  Sn-zeolite beta as a heterogeneous chemoselective catalyst for Baeyer–Villiger oxidations , 2001, Nature.

[8]  Manuel Moliner,et al.  Tin-containing zeolites are highly active catalysts for the isomerization of glucose in water , 2010, Proceedings of the National Academy of Sciences.

[9]  T. Yashima,et al.  IR and MAS NMR Studies on the Incorporation of Aluminum Atoms into Defect Sites of Dealuminated Mordenites , 1995 .

[10]  Pei Li,et al.  Postsynthesis and Selective Oxidation Properties of Nanosized Sn-Beta Zeolite , 2011 .

[11]  T. Sen,et al.  Incorporation of vanadium species in a dealuminated β zeolite , 1998 .

[12]  A. Corma,et al.  Selective and shape-selective Baeyer-Villiger oxidations of aromatic aldehydes and cyclic ketones with Sn-beta zeolites and H2O2. , 2002, Chemistry.

[13]  A. Corma,et al.  Lewis acids: from conventional homogeneous to green homogeneous and heterogeneous catalysis. , 2003, Chemical reviews.

[14]  F. Cavani,et al.  Sustainability in catalytic oxidation: an alternative approach or a structural evolution? , 2009, ChemSusChem.

[15]  S. Saravanamurugan,et al.  Conversion of Sugars to Lactic Acid Derivatives Using Heterogeneous Zeotype Catalysts , 2010, Science.

[16]  R. Sheldon,et al.  Heterogeneous Catalysts for Liquid-Phase Oxidations: Philosophers' Stones or Trojan Horses? , 1998 .

[17]  G. Hutchings,et al.  Direct catalytic conversion of methane to methanol in an aqueous medium by using copper-promoted Fe-ZSM-5. , 2012, Angewandte Chemie.