Patent ID: 6133191
Filing Date: 2000-10-17
Classification: B01J,C07C,C07F

Abstract:
Chiral diphosphine comprising an aromatic pentatomic biheterocyclic system according to the following general formula: ##STR14## where X is C or O; W is C or O; and with the proviso that only one of X or W is O;where:R.sub.2 is selected from the group consisting of hydrogen, phenyl, aryl, linear, branched, or cyclic alkyl C.sub.1 -C.sub.10, COOR.sub.3, where R.sub.3 is linear, branched, or 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, or cyclic alkyl C.sub.1 -C.sub.10, halogen, OR.sub.6 where R.sub.6 is linear, branched, or cyclic alkyl C.sub.1 -C.sub.10, aryl, substituted aryl where substituents are selected from the group consisting of linear, branched, or cyclic alkyl C.sub.1 -C.sub.10, halogen, OR.sub.6 where R.sub.6 is linear, branched, or cyclic alkyl C.sub.1 -C.sub.10, linear, branched, or 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, or cyclic alkyl C.sub.1 -C.sub.10, halogen, OR.sub.6 where R.sub.6 is linear, branched, or cyclic alkyl C.sub.1 -C.sub.10, aryl, substituted aryl where substituents are selected from the group consisting of linear, branched, or cyclic alkyl C.sub.1 -C.sub.10, halogen, OR.sub.6 where R.sub.6 is linear, branched, or cyclic alkyl C.sub.1 -C.sub.10, linear, branched, or cyclic alkyl C.sub.1 -C.sub.10, OR.sub.5, where R.sub.5 is linear, branched, or cyclic alkyl C.sub.1 -C.sub.10, oreach pentatomic heterocyclic aromatic ring of said system is optionally fused to an optionally substituted benzene or naphthalene ring, wherein the optional substituents are selected from among the group consisting of linear, branched, or cyclic alkyl C.sub.1 -C.sub.10, halogen, OR.sub.6 where R.sub.6 is linear, branched, or cyclic alkyl C.sub.1 -C.sub.10, or unsubstituted according to the following formula: ##STR15## or according to the following formula: ##STR16## where X is O; and where R.sub.4 is selected from the group consisting of hydrogen, linear, branched, cyclic, or unsubstituted alkyl C.sub.1 -C.sub.10, n ranges from 0 to 6.