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52458-13-6

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52458-13-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 52458-13-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,2,4,5 and 8 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 52458-13:
(7*5)+(6*2)+(5*4)+(4*5)+(3*8)+(2*1)+(1*3)=116
116 % 10 = 6
So 52458-13-6 is a valid CAS Registry Number.

52458-13-6Downstream Products

52458-13-6Relevant articles and documents

Palladium-catalyzed denitrative α-arylation of ketones with nitroarenes

Li, Zhirong,Peng, Yonggang,Wu, Tao

supporting information, (2021/02/16)

The palladium-catalyzed α-arylation of ketones with readily available nitroarenes and nitroheteroarenes provides access to useful α-aryl and α-heteroaryl ketones. The use of the Pd/ BrettPhos catalysts was critical to achieve high efficiency for these transformations, whereas other catalysts led to decreased yields or no conversions. The intramolecular type substrate was also applied in this methodology and gave a chromone derivative. Polyaromatic carbonyl compounds can be easily obtained by multicomponent tandem reactions, via nucleophilic aromatic substitution (SNAr) or cross-coupling reaction followed by this denitrative arylation. Kinetic experiments show that the electronic effect of nitrobenzenes has a greater effect on the reaction rate than the electronic effect of ketones.

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