Optically active transition metal complexes 110 new rhodium(I) complexes with 2-pyridinecarboxamido ligands
β Scribed by Henri Brunner; Bernhard Nuber; Markus Prommesberger
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 662 KB
- Volume
- 523
- Category
- Article
- ISSN
- 0022-328X
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The reaction of bromotrichloromethane with styrene in 2 : 1 ethanol-benzene, in the presence of an optically active phosphane-rhodium complex [( -)-diop]RhClf3I (0.30 mmol) at 80Β°C for 18 h, gave the 1 : 1-adduct ( I ) in 26% yield. The adduct (1) showed an optical rotation of
In recent years, transition-metal complex catalyzed asymmetric reactions have received much attention to obtain chiral molecules efficiently and considerable efforts have been devoted to developing new chiral phosphine 1igands.l Two types of optically active phosphine ligands have