Optically active iridium complexes, their preparation and their

Details Optically active iridium complexes, their preparation and their Optically active iridium complexes, their preparation and their

1987-05-08

1989-07-25

Berch, Mark L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

502155, C07F 1500, C07B 5300, B01J 3122

Patent

active

048515345

ABSTRACT:
Optically active iridium complexes of the formula I and mixtures of the diastereomers ##STR1## in which R.sup.1 and R' are H and A is a radical of the formula II, IIa or IIb ##STR2## or R.sup.1 and R' represent a bond and A is a radical of the formula IIc ##STR3## in which R.sup.2 is --H or --CH.sub.3, X.sup..crclbar. is an anion of an inorganic or organic acid, Y and Z are each ethylene, or Y and Z together represent an open-chain or cyclic diene having 6-10 C atoms, whose double bonds are separated by one or two C atoms, and R is a hydrocarbon radical having at least one chiral C atom or a hydrocarbon radical having at least one hetero atom and at least one chiral C atom, or A is a radical of the formula II, IIa or IIb and R is phenyl, naphthyl, 2-methylphen-1-yl or 2,6-dimethylphen-1-yl. The complexes are suitable as enantioselective catalysts.

REFERENCES:
Zassinovich, Journal of Organometallic Chem., vol. 222, pp. 323-329 (1981).
Brunner, Chem Ber., vol. 117, pp. 1330-1354 (1984).
Chalk et al, Ann. New York Acad Sci. 172, 533 (1971).

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