Surface Functionalization for Synergistic Catalysis: Silica–Alumina‐Supported Cationic Indium and Organic Base for Cyanoethoxycarbonylation. Issue 7 (15th April 2014)

• Record Type: Journal Article
• Authors: Motokura, Ken; Ito, Yasuhiro; Noda, Hiroto; Miyaji, Akimitsu; Yamaguchi, Sho; Baba, Toshihide
• Is Part Of: ChemPlusChem. Volume 79:Issue 7(2014:Jul.)
• Page Start: 1053
• Page End: 1058
• Publication Date: 2014-04-15
• Subjects: tertiary amines -- cyanation -- heterogeneous catalyst -- indium -- supported catalysts; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/cplu.201402004
• Languages: English
• ISSNs: 2192-6506

Abstract

Abstract: A silica–alumina (SiO2 –Al2 O3 ) surface possessing both In 3+ cations and an amine base has been prepared. Surface‐functionalized SiO2 –Al2 O3 was characterized by solid‐state 29 Si MAS, 13 C CP/MAS, and 27 Al 2D MQ/MAS NMR spectroscopy; X‐ray photoelectron spectroscopy; and elemental analysis. The bifunctional surface demonstrates synergistic catalysis for cyanoethoxycarbonylation of aldehyde. Abstract : Close relationship : A silica–alumina (SiO2 –Al2 O3 ) surface possessing both In 3+ cations and an amine base is described. These two functions on same solid surface act as acidic and basic units in the catalytic cyanoethoxycarbonylation of aldehyde (see picture).