Title of article :
Novel structure-defined chiral bis(oxazolinyl)thiophenes for Ru-catalyzed asymmetric cyclopropanation
Author/Authors :
Gao، نويسنده , , Ming Z. and Kong، نويسنده , , Deyuan and Clearfield، نويسنده , , Abraham and Zingaro، نويسنده , , Ralph A.، نويسنده ,
Issue Information :
هفته نامه با شماره پیاپی سال 2004
Abstract :
The novel structures of sulfur-containing chiral bis(oxazoline) compounds which have been synthesized have been determined by X-ray crystal diffraction analyses. A high enantioselectivity (ee >99%) in the asymmetric cyclopropanation of diphenylethene with diazoester using the bis(oxazoline)-Ru(II) catalyst was obtained.
Keywords :
asymmetric cyclopropanation , Bis(oxazoline) , Ruthenium , Bis(oxazolinyl)thiophene
Journal title :
Tetrahedron Letters
Journal title :
Tetrahedron Letters
