Complexes having optically active ligands, a process for their p

Details Complexes having optically active ligands, a process for their p Complexes having optically active ligands, a process for their p

1990-02-16

1991-09-10

Shen, Cecilia

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549 4, 549 6, 549209, 549210, 549214, 546 2, 546 6, C07F 0000

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active

050475576

ABSTRACT:
Compounds of the formula I ##STR1## in which Me is Ti, Zr or Hf, R.sub.1 is a group transferable to aldehyde, keto or imine groups, for example methyl, allyl, vinyl or the radical of an enol or enamine, R.sub.2 is, for example, cyclopentadienyl, R.sub.3 and R.sub.4 are, for example, H or alkyl, R.sub.5 is, for example, phenyl and the C(1) and C(2) atoms are chiral and have predominantly one configuration, are suitable for use as chiral reactants for aldehydes, ketones and imines for the preparation of both enantiomers of secondary or tertiary alcohols or tertiary amines.

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Narasaka et al., Chem. Abst. 109-170279j (1988).
Narasaka et al. Chem. Abst. 111-57601m (1989).
Narasaka et al. Chem. Abst. 111-194322k (1989).
Helv. Chim. Acta. vol. 64; pp. 2485-2488 (1981).
Organometallics vol. 3; pp. 1716-1717 (1984).
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