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1177249-19-2

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1177249-19-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1177249-19-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,7,2,4 and 9 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1177249-19:
(9*1)+(8*1)+(7*7)+(6*7)+(5*2)+(4*4)+(3*9)+(2*1)+(1*9)=172
172 % 10 = 2
So 1177249-19-2 is a valid CAS Registry Number.

1177249-19-2Relevant articles and documents

Asymmetric hydrogenation of alkenes with planar chiral 2-phosphino-1- aminoferrocene-iridium(I) complexes

Metallinos, Costa,Van Belle, Lori

, p. 141 - 149 (2011/02/17)

The first highly enantioenriched and enantiopure planar chiral 2-phosphino-1-aminoferrocene ligands and their Ir(COD)BArF complexes are reported. The ligands display bidentate coordination behavior towards iridium, as indicated by trends in 31P and 1H NMR spectra of the phosphine moieties and the α to nitrogen substituents of the amines. All of the new complexes showed good reactivity as catalysts in promoting asymmetric hydrogenation of several prochiral alkenes, with enantioselectivities up to 92%. Iridium complexes of dimethylaminoferrocene derivatives containing P-Ar groups [PPh2 and P(o-tol)2] gave the highest levels of asymmetric induction.

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