Chongqing Municipality, China
Chongqing Municipality, China

Time filter

Source Type

Wu C.,Southwest University | Wu C.,Key Laboratory of Applied Chemistry | Wu C.,Chongqing Three Gorges University | Fu X.,Southwest University | And 11 more authors.
Tetrahedron Letters | Year: 2010

In this work, several new l-threonine derivatives as organocatalysts were synthesized in one step for the first time by the reaction of threonine with acyl chlorides at room temperature in trifluoroacetic acid on a large-scale without protecting groups involved or chromatographic techniques, and those threonine-surfactant organocatalysts mediated the direct asymmetric anti-Mannich reactions of hydroxyacetone and anilines with aldehydes to synthesize anti-1,2-amino alcohols in good yields (75-93%) and highly enantioselectivities (up to 99% ee). © 2010 Elsevier Ltd. All rights reserved.


Hu Z.,Southwest University | Hu Z.,Key Laboratory of Applied Chemistry | Fu X.,Southwest University | Fu X.,Key Laboratory of Applied Chemistry | And 3 more authors.
Applied Organometallic Chemistry | Year: 2011

Four new kinds of heterogeneous catalysts for olefins epoxidation were obtained by grafting diamines on organic polymer-inorganic hybrid material, zirconium poly (styrene-phenylvinylphosphonate)-phosphate (ZPS-PVPA), and subsequently coordinating with Schiff base Mo(VI) complexes. The catalysts were characterized by IR, XPS, SEM and TEM. All catalysts were evaluated through the epoxidation of olefins using tert-BuOOH as oxidant. The heterogeneous catalysts possess the advantages of high conversion, selectivity and excellent reusability. The catalysts were easily separated from the reaction systems and could be reused 13 times without significant loss of catalytic activity. © 2010 John Wiley & Sons, Ltd.

Loading Key Laboratory of Applied Chemistry collaborators
Loading Key Laboratory of Applied Chemistry collaborators