Phosphorus compounds

Details Phosphorus compounds Phosphorus compounds

1983-08-19

1985-12-03

Sneed, Helen M. S.

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

Organic compounds

Phosphorus containing

568 17, C07F 950, C07F 952

Patent

active

045567409

ABSTRACT:
Novel chiral phosphorus compounds of the general formula ##STR1## wherein R signifies substituted or unsubstituted phenyl, R.sup.1 and R.sup.2, which can be the same or different, signify hydrogen, lower alkyl, lower alkoxy, di-lower alkylamino or protected hydroxymethyl or R.sup.1 and R.sup.2 together signify the group ##STR2## in which m represents a number 3 to 5, R.sup.4 represents lower alkyl, substituted or unsubstituted phenyl or benzyl and R.sup.5 represents lower alkyl or both R.sup.5 's together represent lower alkylene, R.sup.3 signifies methyl, lower alkoxy, di-lower alkylamino or fluorine and n signifies the number 0, 1, 2 or 3, are described.
The compounds of formula I are useful in the form of complexes with a metal of Group VIII as catalysts for asymmetric hydrogenations and enantioselective hydrogen displacements in prochiral allylic systems.

REFERENCES:
patent: 3064055 (1962-11-01), Herring
patent: 3798241 (1974-03-01), Kagan et al.
patent: 4123465 (1978-10-01), Valentine
patent: 4356324 (1982-10-01), Bergstein et al.
Chemical Abstracts 94 65844p (1981).
Kosolapoff, Organic Phosphorus Cpd. Wiley N.Y. VI, p. 209 (1972).
Chemical Abstracts 97 92408t (1982).
Chemical Abstracts 94 121896w (1981).
Chemical Abstracts 97 109322k (1982).

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