Patent number: 7642366
Abstract: The invention is concerned with new phosphine ligands of the formula I wherein R1 and R2 are independently of each other alkyl, aryl, cycloalkyl or heteroaryl, said alkyl, aryl, cycloalkyl or heteroaryl may be substituted by alkyl, alkoxy, halogen, hydroxy, amino, mono- or dialkylamino, aryl, —SO2—R7, —SO3?, —CO—NR8R8?, carboxy, alkoxycarbonyl, trialkylsilyl, diarylalkylsilyl, dialkylarylsilyl or triarylsilyl; R3 is alkyl, cycloalkyl, aryl or heteroaryl; R4? and R4 signify independently of each other hydrogen, alkyl or optionally substituted aryl; or R4? and R4 together with the C-atom they are attached to form a 3-8-membered carbocyclic ring; dotted line is absent or is present and forms a double bond; R5 and R6 are independently of each other hydrogen, alkyl or aryl; or linked together to form a 3-8-membered carbocyclic ring or an aromatic ring; R7 is alkyl, aryl or NR8R8?; and R8 and R8? are independently of each other hydrogen, alkyl or aryl; metal complexes with such ligands as well as the use of su
Type:
Grant
Filed:
November 1, 2006
Date of Patent:
January 5, 2010
Assignee:
Hoffmann-La Roche Inc.
Inventors:
Hans Iding, Ernst Kupfer, Bruno Lohri, Kazimierz Michal Pietrusiewicz, Kurt Puentener, Michelangelo Scalone, Wioleta Swierczynska, Beat Wirz
Publication number: 20090326253
Abstract: The invention is concerned with new phosphine ligands of the formula I wherein R1 and R2 are independently of each other alkyl, aryl, cycloalkyl or heteroaryl, said alkyl, aryl, cycloalkyl or heteroaryl may be substituted by alkyl, alkoxy, halogen, hydroxy, amino, mono- or dialkylamino, aryl, —SO2—R7, —SO3?, —CO—NR8R8?, carboxy, alkoxycarbonyl, trialkylsilyl, diarylalkylsilyl, dialkylarylsilyl or triarylsilyl; R3 is alkyl, cycloalkyl, aryl or heteroaryl; R4? and R4 signify independently of each other hydrogen, alkyl or optionally substituted aryl; or R4? and R4 together with the C-atom they are attached to form a 3-8-membered carbocyclic ring; dotted line is absent or is present and forms a double bond; R5 and R6 are independently of each other hydrogen, alkyl or aryl; or linked together to form a 3-8-membered carbocyclic ring or an aromatic ring; R7 is alkyl, aryl or NR8R8?; and R8 and R8? are independently of each other hydrogen, alkyl or aryl; metal complexes with such ligands as well as the use of suc
Type:
Application
Filed:
September 11, 2009
Publication date:
December 31, 2009
Inventors:
Hans Iding, Ernst Kupfer, Bruno Lohri, Kazimierz Michal Pietrusiewicz, Kurt Puentener, Michelangelo Scalone, Wioleta Swierczynska, Beat Wirz
Publication number: 20070100152
Abstract: The invention is concerned with new phosphine ligands of the formula I wherein R1 and R2 are independently of each other alkyl, aryl, cycloalkyl or heteroaryl, said alkyl, aryl, cycloalkyl or heteroaryl may be substituted by alkyl, alkoxy, halogen, hydroxy, amino, mono- or dialkylamino, aryl, —SO2—R7, —SO3?, —CO—NR8R8?, carboxy, alkoxycarbonyl, trialkylsilyl, diarylalkylsilyl, dialkylarylsilyl or triarylsilyl; R3 is alkyl, cycloalkyl, aryl or heteroaryl; R4? and R4 signify independently of each other hydrogen, alkyl or optionally substituted aryl; or R4? and R4 together with the C-atom they are attached to form a 3-8-membered carbocyclic ring; dotted line is absent or is present and forms a double bond; R5 and R6 are independently of each other hydrogen, alkyl or aryl; or linked together to form a 3-8-membered carbocyclic ring or an aromatic ring; R7 is alkyl, aryl or NR8R8?; and R8 and R8? are independently of each other hydrogen, alkyl or aryl; metal complexes with such ligands as well as the use of s
Type:
Application
Filed:
November 1, 2006
Publication date:
May 3, 2007
Inventors:
Hans Iding, Ernst Kupfer, Bruno Lohri, Kazimierz Pietrusiewicz, Kurt Puentener, Michelangelo Scalone, Wioleta Swierczynska, Beat Wirz