Optically active diphosphines, intermediates thereof, and proces

Details Optically active diphosphines, intermediates thereof, and proces Optically active diphosphines, intermediates thereof, and proces

1992-08-27

1993-12-07

Dees, Jose G.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

556 21, 556136, 568 8, 568 17, 568338, 568365, 568367, C07D30791, C07F 1500, C07F 902

Patent

active

052684920

ABSTRACT:
An optically active diphosphine having a bicyclo[2.2.1]heptane of the formula ##STR1## where R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are difined in the specification and a metal complex comprising said optically active diphosphine are disclosed. A process for producing or purifying said optically active diphosphine is disclosed.

REFERENCES:
Chem. Abstracts CA 114(19):184 937n (Miyazawa et al.) May 13, 1991.
Chem. Abstracts CA 114(21):207 458y (Casey et al.) May 27, 1991.
Casey et al., The Journal of Organic Chemistry, vol. 55, 1990, p. 1394t.
Casey et al., J. Org. Chem., 55, 1394-96 (1990).
Miyazawa et al., SYNLETT, 711-712 (1990).

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