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1159187-59-3

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1159187-59-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1159187-59-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,5,9,1,8 and 7 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1159187-59:
(9*1)+(8*1)+(7*5)+(6*9)+(5*1)+(4*8)+(3*7)+(2*5)+(1*9)=183
183 % 10 = 3
So 1159187-59-3 is a valid CAS Registry Number.

1159187-59-3Relevant articles and documents

The Suzuki-Miyaura Cross-Coupling Reaction of Halogenated Aminopyrazoles: Method Development, Scope, and Mechanism of Dehalogenation Side Reaction

Jedinák, Luká?,Zátopková, Renáta,Zemánková, Hana,?ustková, Alena,Canka?, Petr

supporting information, p. 157 - 169 (2017/04/26)

The efficient Suzuki-Miyaura cross-coupling reaction of halogenated aminopyrazoles and their amides or ureas with a range of aryl, heteroaryl, and styryl boronic acids or esters has been developed. The method allowed incorporation of problematic substrates: aminopyrazoles bearing protected or unprotected pyrazole NH, as well as the free amino or N-amide group. Direct comparison of the chloro, bromo, and iodopyrazoles in the Suzuki-Miyaura reaction revealed that Br and Cl derivatives were superior to iodopyrazoles, as a result of reduced propensity to dehalogenation. Moreover, the mechanism and factors affecting the undesired dehalogenation side reaction were revealed.

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