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1315571-21-1

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1315571-21-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1315571-21-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,1,5,5,7 and 1 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1315571-21:
(9*1)+(8*3)+(7*1)+(6*5)+(5*5)+(4*7)+(3*1)+(2*2)+(1*1)=131
131 % 10 = 1
So 1315571-21-1 is a valid CAS Registry Number.

1315571-21-1Downstream Products

1315571-21-1Relevant articles and documents

Chlorination and ortho-acetoxylation of 2-arylbenzoxazoles

Leng, Yuting,Yang, Fan,Zhu, Weiguo,Wu, Yangjie,Li, Xiang

, p. 5288 - 5296 (2011/08/05)

Efficient and facile catalytic protocols for chlorination and ligand-directed ortho-acetoxylation of 2-arylbenzoxazoles have been developed. The chlorination is not a ligand-directed ortho-functionalization, but an electrophilic substitution process in the benzo ring of the benzoxazole moiety. Meanwhile, the acetoxylation exhibited high regioselectivity for the substrates containing a meta-substituent and occurred at the less sterically hindered ortho-C-H bond of the directing group. The Royal Society of Chemistry 2011.

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