Ligands for asymmetric catalysis

Details Ligands for asymmetric catalysis Ligands for asymmetric catalysis

C - Chemistry, Metallurgy

07

F

C07F 9/6568 (2006.01) C07B 53/00 (2006.01) C07C 29/145 (2006.01) C07C 31/20 (2006.01) C07C 33/22 (2006.01) C07C 45/50 (2006.01) C07C 67/303 (2006.01) C07C 69/34 (2006.01) C07C 231/12 (2006.01) C07C 233/47 (2006.01) C07F 15/00 (2006.01) C07F 17/02 (2006.01)

Patent

CA 2254140

A chiral compound of formula (I) or (II) wherein R1, R2, R3 and R4 are each independently H, alkyl, cycloalkyl, aryl, or alkaryl, provided that R1 and R2 are not both H; and X is any group capable of forming a stable bond to phosphorus, is useful as a ligand in asymmetric reactions.

Composé chiral représenté par la formule (I) ou (II), dans laquelle R?1¿, R?2¿, R?3¿ et R?4¿ représentent chacun indépendamment H, alkyle, cycloalkyle, aryle ou alkaryle, à condition que R?1¿ et R?2¿ ne représentent pas tous les deux H; et X représente tout groupe capable de créer une liaison simple avec phosphore. Ce composé est utile en tant que ligand dans des réactions asymétriques.

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