Enantioselective oxazaborolidine catalysts

Details Enantioselective oxazaborolidine catalysts Enantioselective oxazaborolidine catalysts

1994-10-13

1996-09-03

Wu, Shean C.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548405, 548950, 558289, 568881, C07B 5300, C07F 502

Patent

active

055525482

ABSTRACT:
The borane reduction of prochiral ketones to optically pure alcohols is effectively achieved by the utilization of catalytic amounts of the new and valuable oxazaborolidine catalysts of formula (I). ##STR1##

REFERENCES:
patent: 4943635 (1990-07-01), Corey
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Saigo et al., Bull. Chem. Soc., Japan, 1982, 55, 1568-73.
Youn et al., Tetrahedron Letters, 1988, 29, 4453-6.
Rao et al., Tetrahedron Letters, 1990, 31, 2341-44.
Stingl et al., Tetrahedron: Asymmetry, 1992, 3, 223-6.
Martens et al., Tetrahedron: Asymmetry, 1992, 3, 347-50.
Wallbaum et al., Tetrahedron: Asymmetry, 1991, 2, 1093-96.
Wallbaum and Martens, Tetrahedron: Asymmetry, 1992, 3, 1475-1504.

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