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1436849-58-9

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1436849-58-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1436849-58-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,3,6,8,4 and 9 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1436849-58:
(9*1)+(8*4)+(7*3)+(6*6)+(5*8)+(4*4)+(3*9)+(2*5)+(1*8)=199
199 % 10 = 9
So 1436849-58-9 is a valid CAS Registry Number.

1436849-58-9Downstream Products

1436849-58-9Relevant articles and documents

Nickel(II)-catalyzed direct arylation of C-H bonds in aromatic amides containing an 8-aminoquinoline moiety as a directing group

Yokota, Ayana,Aihara, Yoshinori,Chatani, Naoto

, p. 11922 - 11932 (2015/02/19)

Arylation via the cleavage of the ortho C-H bonds by a nickel-catalyzed reaction of aromatic amides containing an 8-aminoquinoline moiety with aryl iodides is reported. The reaction shows a high functional group compatibility. The reaction proceeds in a highly selective manner at the less hindered C-H bonds in the reaction of meta-substituted aromatic amides, irrespective of the electronic nature of the substituents. Electron-withdrawing groups on the aromatic amides facilitate the reaction. Various mechanistic experiments, such as deuterium labeling experiments, Hammett studies, competition experiments, and radical trap experiments, have been made for better understanding the reaction mechanism. It is found that the cleavage of C-H bonds is reversible on the basis of the deuterium labeling experiments. Both Ni(II) and Ni(0) show a high catalytic activity, but the results of mechanistic experiments suggest that a Ni(0)/Ni(II) catalytic cycle is not involved. (Chemical Equation Presented).

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