公开(公告)号：EP1651655B1

公开(公告)日：2008-04-02

申请号：EP04763601.4

申请日：2004-07-29

Applicant: BASF SE

Inventor： HUTTENLOCH, Oliver ,  MAASE, Matthias ,  FLAJS, Toni ,  WERNER, Jürgen

IPC: C07F9/50

CPC classification number: C07F9/5036 ,  C07F9/5337

Abstract: A process for the preparation of acylphosphines of formula (I) wherein m is 1 or 2; R1, R2, and R3 are organic residues derived from aliphatic or aromatic hydrocarbons; by (1) reacting organic phosphorus halides of formula (II) wherein Y is Br or Cl,with an alkali metal in a solvent in the presence of an activator, wherein the alkali metal is present in the form of a dispersion of alkali metal particles having a mean particle size of ≤ 500 µm in the solvent, (2) subsequent reaction with acid halides of formula (III) which process is carried out without isolation of the intermediates. Preferably, R1, R2 and R3 are independently from each other phenyl, naphthyl and bi-phenyl, being unsubstituted or substituted by one to five halogen, C1-C8 alky and/or C1-C8 alkoxy. Most preferably, R1 and R3 are phenyl and R2 is 2,4,6-trimethylphenyl. The alkali metal is preferably sodium, the activator is preferably chlorobenzene and/or n-butanol.

公开(公告)号：EP1851233B1

公开(公告)日：2008-09-03

申请号：EP06708152.1

申请日：2006-02-09

Applicant: BASF SE

Inventor： WISSEL, Kathrin ,  MAASE, Matthias ,  HUTTENLOCH, Oliver ,  FLAJS, Toni ,  KUHL, Melanie

IPC: C07F9/50

CPC classification number: C07F9/5081 ,  C07F9/5068

Abstract: The invention relates to a method for producing tertiary phosphines by reacting a compound of general formula (I) with (a) an alkali metal in an organic aprotic solvent and (b) a compound of general formula (II). In formula (I), A represents R 1 or L 2 , B represents R 2 or L 3 , where the groups R 1 and R 2 independently of one another stand for an organic group with respectively between 1 and 30 carbon atoms and said groups R 1 and R 2 can also be bonded together. The leaving groups L 1 to L 3 independently of one another represent halogen, alkyloxy with between 1 and 10 carbon atoms or aryloxy with between 6 and 10 carbon atoms. In formula (II), the group R 3 represents an organic group with respectively between 1 and 30 carbon atoms and the leaving group L 4 represents halogen, alkyloxy with between 1 and 10 carbon atoms or aryloxy with between 6 and 10 carbon atoms. The reaction mixture that is obtained is hydrolysed using an aqueous base with a pH value of > 10 and the organic phase is then separated from the aqueous phase.