Title of article :
Supramolecular chiral phosphorous ligands based on a [2]pseudorotaxane complex for asymmetric hydrogenation
Author/Authors :
Li، نويسنده , , Yong and Feng، نويسنده , , Yu and He، نويسنده , , Yanmei and Chen، نويسنده , , Fei and Pan، نويسنده , , Jie and Fan، نويسنده , , Qing-Hua، نويسنده ,
Issue Information :
هفته نامه با شماره پیاپی سال 2008
Pages :
4
From page :
2878
To page :
2881
Abstract :
A new type of supramolecular chiral phosphorus-based ligands was prepared from easily available monodentate ligands through complexation between dibenzylammonium salt and dibenzo[24]crown-8 macrocycle. Rhodium complexes with these supramolecular ligands were prepared, and the supramolecular bidentate ligand-containing catalyst has demonstrated better catalytic activity for all substrates, and higher enantioselectivity except for the ortho-substituted substrates than those obtained from the parent monodentate ligand in the asymmetric hydrogenation of α-dehydroamino acid esters.
Keywords :
Chiral phosphorous ligands , SELF-ASSEMBLY , Pseudorotaxane , asymmetric hydrogenation
Journal title :
Tetrahedron Letters
Serial Year :
2008
Journal title :
Tetrahedron Letters
Record number :
1859065
Link To Document :
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