Technical Notes:
1. Phenyl-BPE exhibits enhanced activity and selectivity over existing members of the BPE ligand family in rhodium catalyzed asymmetric hydrogenation.
2. This ligand is highly efficient for the hydrogenation of N-acyl aryl-enamides.
3. Molar substrate/catalyst ratios of up to 100,000/1 are achieved with excellent reactivity and enantioselectivity using commercial grade substrates and solvents.
4. Ligand in the rhodium-catalyzed asymmetric hydroformylation of olefins.
References:
1. Org. Lett., 2003, 5, 1273.
2. Tetrahedron Lett., 2004, 45, 9277.
3. Angew. Chem. Int. Ed., 2005, 44, 5834.
Strem
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