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62572-86-5

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62572-86-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 62572-86-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,2,5,7 and 2 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 62572-86:
(7*6)+(6*2)+(5*5)+(4*7)+(3*2)+(2*8)+(1*6)=135
135 % 10 = 5
So 62572-86-5 is a valid CAS Registry Number.

62572-86-5Relevant articles and documents

Palladium-catalyzed chelation-assisted aromatic C-H nitration: Regiospecific synthesis of nitroarenes free from the effect of the orientation rules

Zhang, Wei,Lou, Shaojie,Liu, Yunkui,Xu, Zhenyuan

, p. 5932 - 5948 (2013/07/26)

A palladium-catalyzed chelation-assisted ortho-nitration of aryl C-H bond is described. A range of azaarenes such as 2-arylquinoxalines, pyridines, quinoline, and pyrazoles were nitrated with excellent chemo- and regioselectivity. Using the O-methyl oximyl group as a removable directing group, the regiospecific synthesis of a variety of o-nitro aryl ketones was achieved starting from aryl ketones via a three-step process involving the Pd-catalyzed ipso-nitration of C-H bond as a key step. Mechanistic investigations support a silver-mediated radical mechanism involving Pd((II/III) and/or Pd(II/IV) catalytic cycles under oxidizing conditions.

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