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108429-51-2

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108429-51-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 108429-51-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,8,4,2 and 9 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 108429-51:
(8*1)+(7*0)+(6*8)+(5*4)+(4*2)+(3*9)+(2*5)+(1*1)=122
122 % 10 = 2
So 108429-51-2 is a valid CAS Registry Number.

108429-51-2Relevant articles and documents

DECOMPOSITION OF ARYLAZIDES BY THF/n-BUTYLLITHIUM-II- -ISOLATION OF 1-ARYL-4,5-DIHYDRO-5-HYDROXY-1H-1,2,3-TRIAZOLES

Nunno, L. Di,Scilimati, A.

, p. 3913 - 3920 (2007/10/02)

By reaction of arylazides having no electron-withdrawing groups with the enolate ion of the acetaldehyde (formed by cycloreversion of THF in the presence of n-buthyllithium), 1-aryl-4,5-dihydro-5-hydroxy-1H-1,2,3-triazoles could be isolated and then characterized.Further reaction of such hydroxytriazolines with the same enolate ion afforded substantial amounts of the corresponding N-formylanilines , confirming their intermediacy in the previously reported decomposition of arylazides by THF/n-butyllithium.On the other hand, using alkoxides as bases, the preferred scheme of conversion of the hydroxytriazolines was found to be the known dehydration to 1-aryl-1H-1,2,3-triazoles.

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