Heterogeneous organotin catalysts

Details Heterogeneous organotin catalysts Heterogeneous organotin catalysts

C - Chemistry, Metallurgy

07

F

C07F 7/22 (2006.01) B01J 31/02 (2006.01) B01J 31/12 (2006.01) C07C 67/02 (2006.01) C07C 67/03 (2006.01) C07C 67/08 (2006.01) C07C 69/80 (2006.01)

Patent

CA 2245326

This invention provides: (a) new organotin functionalized silanes: (b) a solid prepared by chemically bonding organotin functionalized silanes to a solid inorganic support containing surface hydroxy groups: (c) a solid catalyst prepared from said supported organotin functionalized silane; (d) a process for conducting esterification or transesterification, and urethane, urea, silicone, and amino forming reaction utilizing said solid supported catalyst; (e) a process of separating the solid supported catalyst from the reaction products employing ligand - solid separation techniques; (f) reuse of the solid supported catalyst after being separated from the reaction products; (g) a continuous esterification or transesterification reaction or urethane, urea, silicone, or amino forming reaction or urethane, urea, silicone, or amino forming reaction comprising passing reactants for a esterification or transesterification reaction or urethane, urea, silicone, or amino forming reaction or a urethane, urea, silicone, or amino forming reaction or a urethane, urea, silicone, or amino forming reaction reaction through a reactor containing a catalytically effective amount of said solid supported catalyst to form esterification or transesterification reaction or a urethane, urea, silicone, or amino forming reaction or a urethane, urea, silicone, or amino forming reaction products in said reactor and removing said reaction products from said reactor; and (h) esterification or transesterification reaction or a urethane, urea, silicone, or amino forming reaction or urethane, urea, silicone, or amino forming reaction products produced with said solid, supported, tin-containing catalyst and said reaction products containing less than 100ppm tin by weight; and (i) the synthesis of organotin silanes with and without a Lewis acid.

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