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1198612-93-9

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1198612-93-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1198612-93-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,9,8,6,1 and 2 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1198612-93:
(9*1)+(8*1)+(7*9)+(6*8)+(5*6)+(4*1)+(3*2)+(2*9)+(1*3)=189
189 % 10 = 9
So 1198612-93-9 is a valid CAS Registry Number.

1198612-93-9Relevant articles and documents

Copper-catalyzed synthesis of 4-Aryl-1H-1,2,3-triazoles from 1,1-dibromoalkenes and sodium azide

Wang, Xiaokun,Kuang, Chunxiang,Yang, Qing

experimental part, p. 424 - 428 (2012/02/03)

A new methodology for the Cu-catalyzed synthesis of 1H-1,2,3-triazoles from 1,1-dibromoalkenes and sodium azide is presented. Aryl dibromoolefins were efficiently converted into the corresponding 1,2,3-triazoles. A comprehensive number of functional group

Bromo-directed N-2 alkylation of NH-1,2,3-triazoles: Efficient synthesis of poly-substituted 1,2,3-triazoles

Wang, Xiao-Jun,Sidhu, Kanwar,Zhang, Li,Campbell, Scot,Haddad, Nizar,Reeves, Diana C.,Krishnamurthy, Dhileepkumar,Senanayake, Chris H.

supporting information; experimental part, p. 5490 - 5493 (2010/02/28)

"Chemical Equation Presented" Reaction of 4-bromo-NH-1,2,3- triazoles 2 with alkyl halides In the presence of K2CO3 in DMF produced the corresponding 2-substituted 4-bromo1,2,3-triazoles 5 In a regioselective process. Subsequent Suzuki cross-coupling reaction of these bromides provided an efficient synthesis of 2,4,5-trisubstituted triazoles 3. In addition, reduction of the bromotriazoles by hydrogenation furnished an efficient synthesis of 2,4-disubstituted triazoles 8.

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