4-cyclohexyl-1,3,2-oxazaborolidine chiral accessories

Details 4-cyclohexyl-1,3,2-oxazaborolidine chiral accessories 4-cyclohexyl-1,3,2-oxazaborolidine chiral accessories

C - Chemistry, Metallurgy

07

F

C07F 5/02 (2006.01) B01J 31/14 (2006.01) C07C 29/143 (2006.01) C07C 215/38 (2006.01) C07C 217/74 (2006.01) C07C 231/18 (2006.01) C07C 303/40 (2006.01) C07C 235/60 (2006.01) C07C 311/08 (2006.01)

Patent

CA 2421777

Prochiral ketones are enantioselectively reduced to chiral secondary alcohols with a compound having the formula I: where, the two R2 groups are identical and are each a substituted or unsubstituted, aryl, alkyl, cycloalkyl or aralkyl group; and R3 is a hydrogen atom or a substituted or unsubstituted, alkyl, aryl, aralkyl or alkoxy group; wherein the substituents on the R2 and R3 groups are substantially non-reactive.

Des cétones prochirales sont réduites par énantioséléctivité en alcools secondaires avec un composé représenté par la formule (I). Dans cette formule les deux groupes R¿2? sont identiques et sont chacun un groupe aryle, alkyle, cycloalkyle ou aralkyle, substitué ou non, et R¿3? est un atome d'hydrogène ou un groupe alkyle, aryle, aralkyle ou alcoxy, substitué ou non, et les substituants dans les groupes R¿2? et R¿3? sont sensiblement non réactifs.

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