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1224592-55-5

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1224592-55-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1224592-55-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,4,5,9 and 2 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1224592-55:
(9*1)+(8*2)+(7*2)+(6*4)+(5*5)+(4*9)+(3*2)+(2*5)+(1*5)=145
145 % 10 = 5
So 1224592-55-5 is a valid CAS Registry Number.

1224592-55-5Relevant articles and documents

Pd-catalyzed reactions on pyridinium N-heteroarylaminides. Step-by-step synthesis of 3,5-unsymmetrically disubstituted 2-aminopyridines

Córdoba, Marta,Castillo, Rafael R.,Izquierdo, M. Luisa,Alvarez-Builla, Julio

experimental part, p. 2624 - 2632 (2010/05/01)

Suzuki-Miyaura cross-coupling processes on N-pyridinium bromoazinyl aminides allow access to 3,5-disubstituted N-alkyl-2-aminopyridines. The synthetic pathway involves a regioselective bromination of pyridinium N-(pyridin-2-yl)aminide and a subsequent reaction with boronic acids to afford monosubstituted aminides in good yields. An additional bromination in the 5-position of the pyridine ring followed by a coupling reaction gives pyridinium N-(3,5-diarylpyridin-2-yl)aminides. Finally, a regioselective alkylation on the exo-nitrogen and reduction of the N-N bond yields highly substituted 2-aminopyridines.

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