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1332500-51-2

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1332500-51-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1332500-51-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,2,5,0 and 0 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1332500-51:
(9*1)+(8*3)+(7*3)+(6*2)+(5*5)+(4*0)+(3*0)+(2*5)+(1*1)=102
102 % 10 = 2
So 1332500-51-2 is a valid CAS Registry Number.

1332500-51-2Relevant articles and documents

Expeditious synthesis of phenanthrenes via CuBr2-catalyzed coupling of terminal alkynes and N-tosylhydrazones derived from O-formyl biphenyls

Ye, Fei,Shi, Yi,Zhou, Lei,Xiao, Qing,Zhang, Yan,Wang, Jianbo

, p. 5020 - 5023 (2011)

A new method for the synthesis of phenanthrenes via ligand-free CuBr2-catalyzed coupling/cyclization of terminal alkynes with N-tosylhydrazones derived from o-formyl biphenyls has been developed. This new synthesis has wide range of functional group compatibility.

C(sp)-C(sp3) bond formation through cu-catalyzed cross-coupling of N -tosylhydrazones and trialkylsilylethynes

Ye, Fei,Ma, Xiaoshen,Xiao, Qing,Li, Huan,Zhang, Yan,Wang, Jianbo

supporting information; experimental part, p. 5742 - 5745 (2012/05/07)

Copper-catalyzed cross-coupling of N-tosylhydrazones with trialkylsilylethynes leads to the formation of C(sp)-C(sp3) bonds. Cu carbene migratory insertion is proposed to play the key role in this transformation.

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