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124602-43-3

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124602-43-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 124602-43-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,4,6,0 and 2 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 124602-43:
(8*1)+(7*2)+(6*4)+(5*6)+(4*0)+(3*2)+(2*4)+(1*3)=93
93 % 10 = 3
So 124602-43-3 is a valid CAS Registry Number.

124602-43-3Downstream Products

124602-43-3Relevant articles and documents

Stereospecific, sequential carbonyl insertion and extrusion reactions. Preparation and characterization of [Fe(diars)(Lα)(CO)2 (CH3)]+ and [Fe(diars)(Lα)(Lβ)(CO) (C(O)CH3)ΡN+ complexes

Jablonski,Wang

, p. 318 - 428 (2008/10/08)

A series of σ-alkyl octahedral Fe(II) complexes, 9, of the form [Fe(diars)(CO)2(Lα)(CH3)]+ (diars = o-phenylenebis(dimethylarsine)) was stereospecifically prepared by thermal extrusion of carbon monoxide from the corresponding acyl derivatives. Migratory carbon monoxide insertion of 9 in the presence of a second phosphorus ligand, Lβ, afforded the isosteric acyl complexes [Fe(diars)(CO)(Lα)(Lβ)(C(O)CH3)]+ (15). The strong trans-labilizing effect of σ-acyl is proposed to account for the stereochemistry observed. Equilibrium constants for 9 ? 15 are a function of the total steric demand of Lα and Lβ. Diastereotopic phosphine substituents (Lα or Lβ = L = PR′2R″) were detected with use of 1H NMR spectroscopy, which indicates that the chiral Fe atom is configurationally stable on the 80- and 300-MHz 1H NMR time scales.

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