198491-04-2 Usage
Description
(R)-BIPHENYL-(3,4-DIMETHYL-1-CYCLOPENTADIENYL)-ZIRCONIUM(IV)-(R)-(1,1'-BINAPHTHYL-2) is a complex organometallic compound that features a zirconium center coordinated with biphenyl and 1,1'-binaphthyl ligands. (R)-BIPHENYL-(3,4-DIMETHYL-1-CYCLOPENTADIENYL)-ZIRCONIUM(IV)-(R)-(1,1'-BINAPHTHYL-2) is characterized by its chirality, which is derived from the (R)-BINAPHTHYL-2 ligand, and is widely recognized for its application in asymmetric catalysis.
Uses
Used in Pharmaceutical Industry:
(R)-BIPHENYL-(3,4-DIMETHYL-1-CYCLOPENTADIENYL)-ZIRCONIUM(IV)-(R)-(1,1'-BINAPHTHYL-2) is used as a catalyst for the synthesis of chiral molecules and pharmaceuticals. Its enantioselective properties allow for the creation of specific isomers, which are crucial in the development of effective and targeted drugs.
Used in Chemical Research:
In the field of chemical research, (R)-BIPHENYL-(3,4-DIMETHYL-1-CYCLOPENTADIENYL)-ZIRCONIUM(IV)-(R)-(1,1'-BINAPHTHYL-2) is utilized as a catalyst for various organic reactions. Its ability to facilitate enantioselective reactions makes it a valuable tool in the development of new catalytic systems for organic synthesis, contributing to the advancement of chemical processes and methodologies.
Used in Asymmetric Catalysis:
(R)-BIPHENYL-(3,4-DIMETHYL-1-CYCLOPENTADIENYL)-ZIRCONIUM(IV)-(R)-(1,1'-BINAPHTHYL-2) is employed as a catalyst in asymmetric catalysis, a branch of chemistry that focuses on the selective synthesis of chiral compounds. (R)-BIPHENYL-(3,4-DIMETHYL-1-CYCLOPENTADIENYL)-ZIRCONIUM(IV)-(R)-(1,1'-BINAPHTHYL-2)'s chiral nature enables the production of specific enantiomers, which are essential in various applications, including the creation of pharmaceuticals and other specialty chemicals.
Check Digit Verification of cas no
The CAS Registry Mumber 198491-04-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,8,4,9 and 1 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 198491-04:
(8*1)+(7*9)+(6*8)+(5*4)+(4*9)+(3*1)+(2*0)+(1*4)=182
182 % 10 = 2
So 198491-04-2 is a valid CAS Registry Number.
198491-04-2Relevant articles and documents
Asymmetric thermal transformation, a new way to enantiopure biphenyl- bridged titanocene and zirconocene complexes: Efficient catalysts for asymmetric imine hydrogenation
Ringwald, Markus,Stürmer, Rainer,Brintzinger, Hans H.
, p. 1524 - 1527 (2007/10/03)
Enantiopure biphenyl-bridged titanocene and zirconocene complexes were obtained, by an asymmetric thermal transformation of the binaphthol complexes formed from the metallocene racemates and subsequent transformation to the corresponding dichlorides, in practically quantitative yields. Increased rates of this transformation in the presence of O2 gas or TEMPO indicate a radical reaction mechanism. The biphenyl-bridged titanocene enantiomers give rise to an efficient asymmetric catalysis for the hydrogenation of cyclic and noncyclic imines.
