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20357-06-6

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20357-06-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20357-06-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,3,5 and 7 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 20357-06:
(7*2)+(6*0)+(5*3)+(4*5)+(3*7)+(2*0)+(1*6)=76
76 % 10 = 6
So 20357-06-6 is a valid CAS Registry Number.

20357-06-6Downstream Products

20357-06-6Relevant articles and documents

Synthesis of Piperidinone and Azepanone Fused Indoles via a Wagner-Meerwein Type 1,2-Amide Migration of 2-Spiropseudoindoxyls

Marien, Niels,Luo, Ting,Verniest, Guido

, p. 934 - 938 (2017)

Spiropseudoindoxyls were synthesized by using a gold(III)-catalyzed intramolecular nitroalkyne redox-dipolar cycloaddition cascade. These compounds were then transformed into novel piperidinone and azepanone fused indoles via a straightforward hydrogenation. The reaction mechanism of this ring expansion is believed to proceed through a rare Wagner-Meerwein type 1,2-amide migration.

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