C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 69/732 (2006.01) B01J 31/24 (2006.01) C07B 53/00 (2006.01) C07C 67/31 (2006.01) C07C 69/675 (2006.01) C07C 69/757 (2006.01) C07D 307/33 (2006.01)
Patent
CA 2139361
2139361 9401390 PCTABS00030 An enantioselective method for the catalytic hydrogenation of the secondary alcohol function ketone C=O bond. The method uses a neutral ruthenium complex as the catalyst and a compound with a C=O functionality as the substrate to be hydrogenated, and is characterized in that it includes the hydrogenation of the substrate of a diallyl compound of (diphosphino)ruthenium of formula (I), wherein al is preferably CH2CH=CH2 or CH2C(CH3)=CH2, Q is a hydrocarbon bridge with at least two catenary carbon atoms and possibly 1-4 catenary heteroatoms selected from O, S, N and Si, and each of R1-R4, which are the same or different, is a C1-18 alkyl, C5-7 cycloalkyl or C6-12 aryl group.
Genet Jean-Pierre
Juge Sylvain
Laffitte Jean-Alex
Mallart Serge
Pinel Catherine
Elf Aquitaine Production
Swabey Ogilvy Renault
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