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22513-41-3

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22513-41-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 22513-41-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,5,1 and 3 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 22513-41:
(7*2)+(6*2)+(5*5)+(4*1)+(3*3)+(2*4)+(1*1)=73
73 % 10 = 3
So 22513-41-3 is a valid CAS Registry Number.

22513-41-3Downstream Products

22513-41-3Relevant articles and documents

Intramolecular catalytic Friedel-Crafts reactions with allenyl cations for the synthesis of quinolines and their analogues

Ishikawa, Teruhiko,Manabe, Shinobu,Aikawa, Toshiaki,Kudo, Takayuki,Saito, Seiki

, p. 2361 - 2364 (2007/10/03)

(Equation Presented) This paper describes a novel method to synthesize a quinoline backbone by incorporating allenyl cations into a catalytic intramolecular Friedel-Crafts reaction. The initial products were isomerized and aromatized upon treatment with acid and base, respectively, to give quinolines. The basic concept also proved to be promising for 1-benzazepine, 1-benzazocine, or isoquinoline synthesis.

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