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138346-24-4

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138346-24-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138346-24-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,3,4 and 6 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 138346-24:
(8*1)+(7*3)+(6*8)+(5*3)+(4*4)+(3*6)+(2*2)+(1*4)=134
134 % 10 = 4
So 138346-24-4 is a valid CAS Registry Number.

138346-24-4Downstream Products

138346-24-4Relevant articles and documents

Ruthenium-Catalyzed Remote C-H Sulfonylation of N-Aryl-2-aminopyridines with Aromatic Sulfonyl Chlorides

Ramesh, Balu,Jeganmohan, Masilamani

supporting information, p. 6000 - 6003 (2017/11/10)

A ruthenium-catalyzed remote sulfonylation at the C5 position of the pyridine group of N-aryl-2-aminopyridines with aromatic sulfonyl chlorides is described. The mechanistic and deuterium labeling studies clearly reveal that the ruthenametallacycle is a key intermediate in the reaction, which forms via the C-H bond activation. The DFT calculation supports that the C5 position of the 2-aminopyridine group carries a more negative charge (-0.304) as compared with other carbons in the metalacycle intermediate.

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