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58416-61-8

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58416-61-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 58416-61-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,8,4,1 and 6 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 58416-61:
(7*5)+(6*8)+(5*4)+(4*1)+(3*6)+(2*6)+(1*1)=138
138 % 10 = 8
So 58416-61-8 is a valid CAS Registry Number.

58416-61-8Relevant articles and documents

Efficient and chemoselective reduction of pyridines to tetrahydropyridines and piperidines via rhodium-catalyzed transfer hydrogenation

Wu, Jianjun,Tang, Weijun,Pettman, Alan,Xiao, Jianliang

supporting information, p. 35 - 40 (2013/03/13)

Promoted by iodide anion the rhodium complex dimer, [Cp RhCl 2]2, catalyzes efficiently the transfer hydrogenation of various quaternary pyridinium salts under mild conditions, affording not only piperidines but also 1,2,3,6-tetrahydropyridines in a highly chemoselective fashion, depending on the substitution pattern at the pyridinium ring. The reduction is conducted in azeotropic formic acid/triethylamine (HCOOH-Et 3N) mixture at 40 °C, with catalyst loadings as low as 0.005mol% being feasible. Copyright

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