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[2,3,2',3'-tetrahydro-5,5'-bi(1,4-benzodioxin)-6,6'-diyl]bis-(diphenylphosphane oxide) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

503538-67-8

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503538-67-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 503538-67-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,3,5,3 and 8 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 503538-67:
(8*5)+(7*0)+(6*3)+(5*5)+(4*3)+(3*8)+(2*6)+(1*7)=138
138 % 10 = 8
So 503538-67-8 is a valid CAS Registry Number.

503538-67-8Relevant academic research and scientific papers

SYNPHOS: A new atropisomeric diphosphine ligand. From laboratory-scale synthesis to scale-up development

Duprat De Paule, Sebastien,Jeulin, Severine,Ratovelomanana-Vidal, Virginie,Genet, Jean-Pierre,Champion, Nicolas,Deschaux, Gilles,Dellis, Philippe

, p. 399 - 406 (2003)

A new optically active diphosphine ligand, [(5,6),(5′,6′)-bis(ethylenedioxy)biphenyl.2,2′-diyl]bis (diphenylphosphine) (SYNPHOS) has been synthesized. Laboratory-scale synthesis and scale-up development of this ligand are described herein. This new atropisomeric diphosphine was also used in ruthenium-catalyzed asymmetric hydrogenation.

Synthesis and Molecular Modeling Studies of SYNPHOS(R), a New, Efficient Diphosphane Ligand For Ruthenium-Catalyzed Asymmetric Hydrogenation

Paule, Sebastien Duprat de,Jeulin, Severine,Ratovelomanana-Vidal, Virginie,Genet, Jean-Pierre,Champion, Nicolas,Dellis, Philippe

, p. 1931 - 1941 (2007/10/03)

A new, optically active, atropisomeric diphosphane ligand, (2,3,2',3'-tetrahydro-5,5'-bi(1,4-benzodioxin)-6,6'-diyl)bis-(diphenylphosphane) (SYNPHOS(R)), has been synthesized, characterized, and used in ruthenium-catalyzed asymmetric hydrogenations. This new ligand has been compared with other atropisomeric diphosphanes (BINAP and MeO-BIPHEP) with respect to their dihedral angles calculated by molecular modeling and the enantioselectivity of their ruthenium-mediated hydrogenation reactions.

SYNPHOS, a new chiral diphosphine ligand: Synthesis, molecular modeling and application in asymmetric hydrogenation

Duprat De Paule, Sébastien,Jeulin, Séverine,Ratovelomanana-Vidal, Virginie,Genêt, Jean-Pierre,Champion, Nicolas,Dellis, Philippe

, p. 823 - 826 (2007/10/03)

A new optically active diphosphine ligand, [(5,6),(5′,6′)-bis(ethylenedioxy)biphenyl-2,2′-diyl]bis (diphenylphosphine) (SYNPHOS) has been synthesized and used in ruthenium-catalyzed asymmetric hydrogenation. This new ligand has been compared to other diphosphines (BINAP and MeO-BIPHEP), regarding their dihedral angles and the enantioselectivity in the ruthenium mediated hydrogenation reaction.

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