Patent ID: 6297387
Filing Date: 2001-10-02
Classification: B01J,C07C,C07F

Abstract:
Chiral diphosphine comprising an aromatic pentatomic biheterocyclic system according to the following general formula: ##STR10##where X is C or N; W is C or N; and with the proviso that only one of X or W is N; and provided that the biheterocyclic rings are symmetrically heterosubstituted by at least one nitrogen atom; where:R.sub.2 is selected from the group consisting of hydrogen, phenyl, aryl, linear, branched, and cyclic alkyl C.sub.1 -C.sub.10, COOR.sub.3, where R.sub.3 is linear, branched, and cyclic alkyl C.sub.1 -C.sub.10 ;Y is selected from the group consisting of phenyl, substituted phenyl where substituents are selected from the group consisting of linear, branched, and cyclic alkyl, C.sub.1 -C.sub.10, halogen, OR.sub.6 where R.sub.6 is linear, branched, and cyclic alkyl C.sub.1 -C.sub.10, aryl, substituted aryl where substituents are selected from the group consisting of linear, branched, and cyclic alkyl C.sub.1 -C.sub.10, halogen, OR.sub.6 where R.sub.6 is linear, branched, and cyclic alkyl C.sub.1 -C.sub.10, linear, branched, and cyclic alkyl C.sub.3 -C.sub.10 ;R.sub.1 is selected from the group consisting of phenyl, substituted phenyl where substituents are selected from the group consisting of linear, branched, and cyclic alkyl C.sub.1 -C.sub.10, halogen, OR.sub.6 where R.sub.6 is linear, branched, and cyclic alkyl C.sub.1 -C.sub.10, aryl, substituted aryl where substituents are selected from the group consisting of linear, branched, and cyclic alkyl C.sub.1 -C.sub.10, halogen, OR.sub.6 where R.sub.6 is linear, branched, and cyclic alkyl C.sub.1 -C.sub.10, linear, branched, and cyclic alkyl C.sub.1 -C.sub.10, OR.sub.5, where R.sub.5 is linear, branched, and cyclic alkyl C.sub.1 -C.sub.10, and each pentatomic heterocyclic aromatic ring of said system is optionally fused to an optionally substituted benzene or napthalene ring, wherein the optional substituents are selected from among the group consisting of linear, branched, and cyclic alkyl C.sub.1 -C.sub.10, halogen, OR.sub.6 where R.sub.6 is linear, branched, and cyclic alkyl C.sub.1 -C.sub.10, and unsubstituted according to the following formula: ##STR11## ##STR12##where X is N; andwhere R.sub.4 is selected from the group consisting of hydrogen, linear, branched, cyclic, and unsubstituted alkyl C.sub.1 -C.sub.10, n ranges from 0 to 6; where R.sub.2 is selected from the group consisting of hydrogen, phenyl, aryl, linear, branched, and cyclic alkyl C.sub.1 -C.sub.10, COOR.sub.3, where R.sub.3 is linear, branched and cyclic alkyl C.sub.1 -C.sub.10.