Sequential synthesis of β-amino alcohols using a CeO2–ZrO2 bifunctional catalyst system

Dimethyl carbonate synthesis from carbon dioxide and methanol over CeO2versus over ZrO2: comparison of mechanisms

“…This implies that ZrO 2 is a mix of monoclinic and tetragonal phases, which accords with the result of Parghi. 19 There are no other diffraction peaks in ZrO 2 or CeO 2 , indicating that ZrO 2 and CeO 2 are both at high purity.…”

Zr-doped CeO2 nanorods as versatile catalyst in the epoxidation of styrene with tert-butyl hydroperoxide as the oxidant

“…Hence, pure ceria has gradually been replaced by CeO 2 -ZrO 2 mixed oxides. Parghi's group explored CeO 2 -ZrO 2 as a bifunctional catalyst for the synthesis of ␤-amino alcohols with good catalytic activity compared with pure CeO 2 [10]. Si's group fabricated phosphate-containing Ce 0.75 Zr 0.25 O 2 and discovered that the plentiful oxygen vacancies, facilitating redox circle between Ce 3+ and Ce 4+ , greatly promoted the catalytic reaction rate and desorption of product on the catalyst.…”

Effects of the preparation method on the performance of the Cu/ZnO/Al2O3catalyst for the manufacture ofl-phenylalaninol with high ee selectivity froml-phenylalanine methyl ester

“…[4][5][6][7][8][9] Therefore, the formation of chiral amino alcohols has become the subject of considerable interest. Generally, chiral amino alcohols can be prepared by the catalytic aminolysis of epoxides with excess amines at elevated temperatures [10][11][12][13][14] and the reduction of the corresponding acids or esters. [15][16][17][18] In the latter process, the metal hydrides are used as reducing agents, which are reactive at low temperatures thereby retaining the integrity of the stereogenic center.…”