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103095-28-9

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103095-28-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 103095-28-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,0,9 and 5 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 103095-28:
(8*1)+(7*0)+(6*3)+(5*0)+(4*9)+(3*5)+(2*2)+(1*8)=89
89 % 10 = 9
So 103095-28-9 is a valid CAS Registry Number.

103095-28-9Relevant articles and documents

Facile preparation of 5-alkyl-1-aryltetrazoles with arenes, acyl chlorides, hydroxylamine, and diphenylphosphoryl azide

Shibasaki, Kaho,Togo, Hideo

, p. 1816 - 1830 (2020/11/19)

Successive treatment of arenes with acyl chlorides and AlCl3, the addition of water and removal of solvent, the reaction with NH2OH?HCl and K2CO3, and the reaction with diphenylphosphoryl azide and DBU under warming conditions gave the corresponding 5-alkyl-1-aryltetrazoles efficiently in good to moderate yields. The present method is one-pot transformation of arenes into 5-alkyl-1-aryltetrazoles using the Friedel-Crafts acylation and the Beckmann rearrangement under transition-metal-free conditions.

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