155566-49-7Relevant articles and documents
Palladium-Catalyzed Synthesis of Six-Membered Benzofuzed Phosphacycles via Carbon-Phosphorus Bond Cleavage
Baba, Katsuaki,Tobisu, Mamoru,Chatani, Naoto
, p. 70 - 73 (2015/07/28)
The palladium-catalyzed synthesis of dibenzofused six-membered phosphacycles via carbon-phosphorus bond cleavage is developed. This method is compatible with a range of functional groups, such as esters, amides, and carbamates, which is in sharp contrast to the limitations of the classical method using organolithium reagents. (Figure Presented).
Convenient synthesis of tropos phosphine-oxazoline ligands
Liu, Yuanyuan,Yang, Guoqiang,Yao, Dongmei,Tian, Fengtao,Zhang, Wanbin
, p. 87 - 94 (2011/12/15)
Tropos phosphine-oxazoline ligands have shown interesting coordination behavior and excellent chiral inducing ability in asymmetry catalysis. Here we present a convenient and economic route for the synthesis of this type of ligands. According to this new route, the ligands with different electronic and steric properties have been prepared successfully.
Phosphine-oxazoline ligands with an axial-unfixed biphenyl backbone: the effects of the substituent at oxazoline ring and P phenyl ring on Pd-catalyzed asymmetric allylic alkylation
Tian, Fengtao,Yao, Dongmei,Zhang, Yong Jian,Zhang, Wanbin
experimental part, p. 9609 - 9615 (2010/02/27)
A novel kind of chiral phosphine-oxazoline ligands 3 with an axial-unfixed biphenyl backbone bearing different substituent on oxazoline ring and P phenyl ring was prepared. These ligands exist as a mixture of two diastereomers in equilibrium in solution.
A novel axially chiral phosphine-oxazoline ligand with an axis-unfixed biphenyl backbone: Preparation, complexation, and application in an asymmetric catalytic reaction
Zhang, Wanbin,Xie, Fang,Yoshinaga, Hidefumi,Kida, Toshiyuki,Nakatsuji, Yohji,Ikeda, Isao
, p. 1185 - 1188 (2007/10/03)
A novel chiral phosphine-oxazoline ligand 3 with an axis-unfixed biphenyl backbone was prepared. This ligand existed as a mixture of two diastereomers in equilibrium in solution. However, when it was coordinated with palladium(II), only one of the two kin
General synthetic route to chiral flexible biphenylphosphine ligands: The use of a chiral additive enables the preparation and observation of metal complexes incorporating the enantiopure form
Mikami, Koichi,Aikawa, Kohsuke,Korenaga, Toshinobu
, p. 243 - 245 (2007/10/03)
equation presented The enantio-and diastereomerically pure metal complex of a chirally flexible BIPHEP ligand is obtained through enantiomer-selective coordination of a BIPHEP-Ru complex with enantiopure 3,3′-dimethyldiaminobinaphthyl, DM-DBN, followed by
Synthesis of New Chiral Phosphinephosphites Having 2-Diphenylphosphinobiphenyl-2'-yl Backbone and Their Use in Rh(I)-Catalyzed Asymmetric Hydroformylations
Higashizima, Takanori,Sakai, Nozomu,Nozaki, Kyoko,Takaya, Hidemasa
, p. 2023 - 2026 (2007/10/02)
New chiral phosphinephosphites (R)-(5,5'-dichloro-2-diphenylphosphino-4,4',6,6'-tetramethylbiphenyl-2'-yl)(S)-1,1'-binaphthalen-2,2'-diyl)phosphite and its enantiomer (S,R)-BIPHEMPHOS have been synthesized from 5,5'-dichloro-4,4',6,6'-tetramethyl-2,2'-biphenyldiol in enantiomerically pure form.Their Rh(I) complexes have been shown to be highly efficient catalysts for asymmetric hydroformylations of a variety of olefinic substrates.The corresponding phosphinephosphites derived from 2,2'-biphenyldiol were also tested as ligands for asymmetric hydroformylation.
