Chiral organometallic complexes and uses thereof

Details Chiral organometallic complexes and uses thereof Chiral organometallic complexes and uses thereof

C - Chemistry, Metallurgy

07

F

C07F 17/02 (2006.01) C07C 67/31 (2006.01) C07C 69/732 (2006.01) C07F 15/02 (2006.01)

Patent

CA 2044144

(57) Abstract Compounds having general formula (I) wherein (i) Cp is either a cyclopentadienyl ligand having the formula C5(R3)5 where the R3 groups are independently hydrogen, methyl or ethyl or an indenyl ligand; (ii) Z is a ligand having the formula X(R4)2(Y) wherein X is selected from phosphorus, arsenic or antimony; the R4 groups are independently aryl or aroxy and Y is selected from -R5-NHR5 and -OR5 wherein R5 is a hydrocarbyl group; (iii) the R groups are independently hydrogen, halogen or C1 to C4 alkyl; (iv) R1 is selected from hydrogen, C1 to C6 alkyl, benzyl and -CO2R6 where R6 is C1 to C6 alkyl; (v) R2 is selected from hydrogen, C1 to C10 alkyl, phenyl and benzyl, and (vi) B is either R or COY wherein Y is selected from -NHR7, -OR7 and -SR7 where R7 is a hydrocarbyl group is provided. The compounds are efficient asymmetric hy- drogenating agents for prochiral carbonyl containing compounds when used in single enantiomer form.

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