Cas 197958-23-9,2-amino-5-(pyridin-3-yl)pyrimidine

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Check Digit Verification of cas no

The CAS Registry Mumber 197958-23-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,7,9,5 and 8 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 197958-23:
(8*1)+(7*9)+(6*7)+(5*9)+(4*5)+(3*8)+(2*2)+(1*3)=209
209 % 10 = 9
So 197958-23-9 is a valid CAS Registry Number.

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197958-23-9Relevant academic research and scientific papers

New pyrimidylboronic acids and functionalized heteroarylpyrimidines by Suzuki cross-coupling reactions

Clapham, Kate M.,Smith, Amy E.,Batsanov, Andrei S.,McIntyre, Laura,Pountney, Adam,Bryce, Martin R.,Tarbit, Brian

, p. 5712 - 5716 (2008/09/17)

We report the synthesis of 2-chloro-5-pyrimidylboronic acid (6) and 2-amino-5-pyrimidylboronic acid (8) by lithium-halogen exchange followed by reaction with triisopropylborate. Their reactivity with heteroaryl halides in Suzuki-Miyaura cross-coupling reactions has been evaluated. New highly functionalized 5-heteroarylpyrimidine derivatives 24-33 (heteroaryl = quinoline, pyridine, pyrimidine, pyrazine, thiophene, benzothiazole) have been obtained in synthetically useful yields. The X-ray structure of 6 reveals extensive intermolecular O-H...N hydrogen bonding in the crystal. Wiley-VCH Verlag GmbH & Co. KGaA, 2007.

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