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54290-22-1

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54290-22-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 54290-22-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,2,9 and 0 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 54290-22:
(7*5)+(6*4)+(5*2)+(4*9)+(3*0)+(2*2)+(1*2)=111
111 % 10 = 1
So 54290-22-1 is a valid CAS Registry Number.

54290-22-1Relevant articles and documents

Iodine-catalyzed oxidative functionalization of purines with (thio)ethers or methylarenes for the synthesis of purin-8-one analogues

Zhuge, Juanping,Jiang, Ziyang,Jiang, Wei,Histand, Gary,Lin, Dongen

supporting information, p. 5121 - 5126 (2021/06/21)

An efficient oxidative functionalization of purine-like substrates with (thio)ethers or methylarenes under mild conditions is described. Using I2as the catalyst, and TBHP as the oxidant, this protocol provides a valuable synthetic tool for the assembly of a wide range of 9-alkyl(benzyl)purin-8-one derivatives with high atom- and step-economy and exceptional functional group tolerance.

A facile conversion of tetrahydropyranyl ethers to the corresponding bromides and iodides

Vankar, Yashwant D.,Shah, Kavita

, p. 1081 - 1084 (2007/10/02)

Tetrahydropyranyl ethers are converted to the corresponding bromides and iodides upon reaction with NaI (or Libr) and BF3.Et2O (or ClSiMe3).

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