Cas 565430-63-9,7-nitro-1-phenyl-1H-1,2,3-benzotriazole

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Check Digit Verification of cas no

The CAS Registry Mumber 565430-63-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,6,5,4,3 and 0 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 565430-63:
(8*5)+(7*6)+(6*5)+(5*4)+(4*3)+(3*0)+(2*6)+(1*3)=159
159 % 10 = 9
So 565430-63-9 is a valid CAS Registry Number.

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565430-63-9Relevant academic research and scientific papers

Cu-catalyzed arylation of 1-acyl-1H-1,2,3-Benzotriazoles via C–N activation

Zhang, Wenying,Wang, Yangyang,Jia, Xiangru,Du, Zhengyin,Fu, Ying

, p. 64 - 67 (2019)

An efficient copper-catalyzed arylation reaction of 1-acyl-1H-1,2,3-benzotriazoles with diaryliodonium salts via C–N activation is explored. The reaction is conducted regioselectively to form 1-aryl-1H-1,2,3-benzotriazoles in MeCN at 80 °C in the presence of cesium carbonate. 29 examples are given with the product yield of up to 84%. The probable reaction mechanism is proposed.

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