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1270730-42-1

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1270730-42-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1270730-42-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,7,0,7,3 and 0 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1270730-42:
(9*1)+(8*2)+(7*7)+(6*0)+(5*7)+(4*3)+(3*0)+(2*4)+(1*2)=131
131 % 10 = 1
So 1270730-42-1 is a valid CAS Registry Number.

1270730-42-1Downstream Products

1270730-42-1Relevant articles and documents

Divergent Synthesis of Quinolones and Dihydroepindolidiones via Cu(I)-Catalyzed Cyclization of Anilines with Alkynes

Xu, Xuefeng,Sun, Ruzhong,Zhang, Sheng,Zhang, Xu,Yi, Wei

, p. 1893 - 1897 (2018)

A unique and efficient method for one-pot synthesis of diverse 4-quinolones from simple and readily available primary anilines and alkynes via Cu(I)-catalyzed direct cyclization has been developed. The (thio)phenols were also found to visible substrates for this reaction. Moreover, an unprecedented synthesis of dihydroepindolidiones has been demonstrated by using secondary anilines as the versatile substrates.

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