期刊
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
卷 2006, 期 9, 页码 2100-2109出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejoc.200500937
关键词
asymmetric catalysis; benzothiophene; hydrogenation; phospholane ligands; rhodium
A novel and versatile approach has led to the synthesis of various classes of mono- and bidentate phospholane and phosphinite hgands based on a benzothiophene scaffold. The ligand functions in the bidentate ligands can be introduced independently and consecutively. A bis-phospolane ligand as well as its rhodium complex have been characterized by crystal-structure determinations. The bis-phospholane ligands were tested in the catalysed asymmetric homogeneous hydrogenation of dehydroamino acid derivatives, enamides and itaconates and gave ee values of up to 98.7%.
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