Substituted diphenyldiphosphines and a process for their prepara

Details Substituted diphenyldiphosphines and a process for their prepara Substituted diphenyldiphosphines and a process for their prepara

1997-03-10

1998-09-01

Geist, Gary

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

Organic compounds

Phosphorus containing

C07C 950

Patent

active

058012877

ABSTRACT:
The present invention relates to compounds of the formula (I) ##STR1## where R.sup.1 is H or an alkyl radical having from 1 to 12 carbon atoms, R.sup.2 is a straight-chain alkylene radical having from 1 to 8 carbon atoms, an oxygen-containing alkylene radical having from 2 to 4 carbon atoms, a radical of the formula (II) or (III) ##STR2## or a cycloalkylene radical having from 3 to 10 carbon atoms, R.sup.3 is an alkyl radical having from 1 to 25 carbon atoms or an aryl radical having from 6 to 10 carbon atoms, A is a radical --COO.sup.- or --SO.sub.3.sup.- and x=0, y=1, m=1 and n=1, or x=1, y=1, m=(1 or 2) and n=(1 or 2), or, if R.sup.2 is a radical of the formula (II) or (III), x=1, y=0, m=(0 or 1) and n=(0 or 1), and also a process for their preparation.

REFERENCES:
patent: 4556470 (1985-12-01), Samejima et al.
patent: 5481045 (1996-01-01), Herrmann et al.
patent: 5565398 (1996-10-01), Herrmann et al.
Journal of Pharmaceuical Sciences Berge pp. 1-16 1977.
CA 107:217764 Abstract, Mirabelli Mirabelli on Antitumor Activity of bis (diphenylphosphine) alkanes 1987.
Imre Toth, et al., "Immobilization of rhodium complexes in aqueous HBF.sub.4 -The enantioselective hydrogenation of prochiral olefins with CHP-(p-C.sub.6 H.sub.4 NMe.sub.2 H).sub.2 CH .sub.3 !RhNBD}.sup.5+ ", Journal of Organometallic Chemistry, 396 (1990) pp. 363-373.

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