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77508-63-5

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77508-63-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77508-63-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,5,0 and 8 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 77508-63:
(7*7)+(6*7)+(5*5)+(4*0)+(3*8)+(2*6)+(1*3)=155
155 % 10 = 5
So 77508-63-5 is a valid CAS Registry Number.

77508-63-5Relevant articles and documents

Activating a Peroxo Ligand for C?O Bond Formation

del Río, M. Pilar,Abril, Paula,López, José A.,Sodupe, Mariona,Lledós, Agustí,Ciriano, Miguel A.,Tejel, Cristina

supporting information, p. 3037 - 3041 (2019/01/24)

Dioxygen activation for effective C?O bond formation in the coordination sphere of a metal is a long-standing challenge in chemistry for which the design of catalysts for oxygenations is slowed down by the complicated, and sometimes poorly understood, mechanistic panorama. In this context, olefin–peroxide complexes could be valuable models for the study of such reactions. Herein, we showcase the isolation of rare “Ir(cod)(peroxide)” complexes (cod=1,5-cyclooctadiene) from reactions with oxygen, and then the activation of the peroxide ligand for O?O bond cleavage and C?O bond formation by transfer of a hydrogen atom through proton transfer/electron transfer reactions to give 2-iradaoxetane complexes and water. 2,4,6-Trimethylphenol, 1,4-hydroquinone, and 1,4-cyclohexadiene were used as hydrogen atom donors. These reactions can be key steps in the oxy-functionalization of olefins with oxygen, and they constitute a novel mechanistic pathway for iridium, whose full reaction profile is supported by DFT calculations.

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