Diphosphines

Details Diphosphines Diphosphines

C - Chemistry, Metallurgy

07

F

C07F 9/50 (2006.01) B01J 31/24 (2006.01) C07C 303/28 (2006.01) C07D 321/10 (2006.01) C07F 9/572 (2006.01) C07F 9/655 (2006.01) C07F 15/00 (2006.01) C08K 3/32 (2006.01) B01J 23/46 (2006.01) C07C 309/65 (2006.01)

Patent

CA 2357261

The invention relates to the preparation and use as catalysts of diphosphines of the formula (I) (see formula I) in which R is C6-C14-aryl or C4-C13-heteroaryl containing 1 to 3 heteroatoms selected from the group consisting of nitrogen, oxygen, and sulfur, wherein the aryl and heteroaryl radicals may optionally be substituted by halogen, C1-C6-alkyl, C1-C6-alkoxy, and/or trimethylsilyl, and R1 to R4, independently of one another, are each hydrogen, C1-C10-alkyl, C1-C10-alkoxy, F, Cl, or Br.

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