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31402-65-0

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31402-65-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 31402-65-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,4,0 and 2 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 31402-65:
(7*3)+(6*1)+(5*4)+(4*0)+(3*2)+(2*6)+(1*5)=70
70 % 10 = 0
So 31402-65-0 is a valid CAS Registry Number.

31402-65-0Relevant articles and documents

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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