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125115-16-4

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125115-16-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 125115-16-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,5,1,1 and 5 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 125115-16:
(8*1)+(7*2)+(6*5)+(5*1)+(4*1)+(3*5)+(2*1)+(1*6)=84
84 % 10 = 4
So 125115-16-4 is a valid CAS Registry Number.

125115-16-4Relevant articles and documents

Generation and intramolecular cyclization of α-phenylsulfonyl and α-alkylsulfonyl radicals

Tsai, Yeun-Min,Chang, Fu-Chang,Huang, Jimin,Shiu, Chi-Lung,Kao, Chai-Lin,Liu, Jyh-Shiunn

, p. 4291 - 4308 (2007/10/03)

α-Phenylsulfonyl radicals are generated by the reaction of diphenyl dithioacetals or phenyl α-chlorosulfides with tributyltin hydride. Alkyl phenyl dithioacetals react selectively with tributyltin hydride to give α-alkylsulfonyl radicals. 5-Exo-type of intramolecular cyclizations of these radicals are studied. The cyclization is most successful when the olefin is terminally substituted with an ester group. The cis/trans ratio of the cyclized product varies according to the reaction rates. With a faster cyclization, cis-isomer is the major product. A slower cyclization gives more trans-product.

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