Sulfated Zirconia

Abstract

His present research interests focus on the synthesis of industrially important organic fine chemicals using environmentally benign solid acid catalysts.

Synthesis of Sulfated Silica-Doped Tin Oxides and Their High Activities in Transesterification

“…Among them, basic solid catalysts exhibit excellent catalytic activities [7][8][9][10][11][12][13][14], but the interaction between CO 2 in air with these basic solid catalysts normally results in deactivation of these catalysts. In contrast, acidic solid catalysts which are also active for transesterification [16][17][18][19][20][21][22][23], are more chemically stable than basic solid catalysts. As typical acidic solids, sulfated zirconia and tungstated zirconia have been considered to be very effective catalysts for transesterification [20][21][22][23].…”

“…In contrast, acidic solid catalysts which are also active for transesterification [16][17][18][19][20][21][22][23], are more chemically stable than basic solid catalysts. As typical acidic solids, sulfated zirconia and tungstated zirconia have been considered to be very effective catalysts for transesterification [20][21][22][23].…”

“…However, these homogeneous catalysts usually have the disadvantages in separation and environmental pollution. Therefore, there is a great interest on developing catalytically active solids in transesterification [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22]. Among them, basic solid catalysts exhibit excellent catalytic activities [7][8][9][10][11][12][13][14], but the interaction between CO 2 in air with these basic solid catalysts normally results in deactivation of these catalysts.…”

Introduction of organic/inorganic Fe3O4@MCM‐41@Zr‐piperazine magnetite nanocatalyst for the promotion of the synthesis of tetrahydro‐4H‐chromene and pyrano[2,3‐d]pyrimidinone derivatives

“…Zirconium (IV) compounds possess a high coordinating ability due to the higher charge‐to‐size value of Zr 4+ compared to most of the metal ions that allows displaying a good Lewis acid behavior and high catalytic activity. Moreover, many zirconium salts are now commercially available or described in the literature . Despite its advantages, the utility of zirconium (IV) compounds as Lewis acids for organic reactions has not been exploited to a greater extent largely compared to other transition metals .…”

Applications of Zirconium (IV) Compounds in Organic Synthesis

“…Zirconium (IV) compounds possess a high coordinating ability that allows displaying a strong Lewis acid behavior and high catalytic activity. Moreover, many zirconium salts are now commercially available or described in the literature [21]. Despite its advantages, the utility of zirconium (IV) compound as a Lewis acid for organic reactions has not been exploited to a greater extent largely compared to other transition metals [22][23][24].…”