Metal complexes containing optically active sugar ligands, a pro

Details Metal complexes containing optically active sugar ligands, a pro Metal complexes containing optically active sugar ligands, a pro

1987-07-21

1989-05-02

Clingman, A. Lionel

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

Organic compounds

Carbohydrates or derivatives

536121, 536124, 536127, 536120, C07F 728, C07H 2300, C07H 1504

Patent

active

048269654

ABSTRACT:
Compounds of the forulae I and Ia ##STR1## in which R.sup.1 is a group which can be transferred to carbonyl or imine compounds, for example alkyl, allyl, vinyl or the radical of an enol or enamine, R.sup.2 is, for example, cyclopentadienyl, R.sup.3 is the radical of an optically active sugar or sugar derivative, Me is Ti, Zr or Hf, x is 0, 1 or 2 and y is 0, 1, 2 or 3, M.sym. is Li.sym., Na.sym., K.sym., MgY.sym., ZnY.sym., CdY.sym., HgY, CuY.sym. or quaternary ammonium, Y being halogen, are suitable for use as chiral reactants for compounds containing aldehyde, keto and/or N-substituted imine groups.

REFERENCES:
patent: 4176228 (1979-11-01), Hartung
patent: 4490525 (1984-12-01), Hayatsu et al.
T. D. Inch et al., Tetrahedron Letters 41, 3657 (1969).
A. G. Olivero et al., Helv. Chim. Acta 64, 2485 (1981).
M. T. Reetz et al., Organometallics 3, 1716 (1984).
D. Seebach et al., Chem. Ber. 118, 3673 (1985).
Tetrahedron Letters, 41 pp. 3657-3660 (1969).
Helvetica Chimica Acta, 64 (1981) pp. 2485-2488.
Organomettalics 3, (1984) pp. 1716-1717.
D. Seebach, et al., Chem. Ber. 118, pp. 3673-3682 (1985).
Angew. Chem. International Edition, vol. 10, (1971) pp. 871-872.

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