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1225289-40-6

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1225289-40-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1225289-40-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,5,2,8 and 9 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1225289-40:
(9*1)+(8*2)+(7*2)+(6*5)+(5*2)+(4*8)+(3*9)+(2*4)+(1*0)=146
146 % 10 = 6
So 1225289-40-6 is a valid CAS Registry Number.

1225289-40-6Relevant articles and documents

Practical Synthesis of α-Trifluoromethylated Pyridines Based on Regioselective Cobalt-Catalyzed [2+2+2] Cycloaddition using Trifluoromethylated Diynes with Nitriles

Kumon, Tatsuya,Yamada, Shigeyuki,Agou, Tomohiro,Fukumoto, Hiroki,Kubota, Toshio,Hammond, Gerald B.,Konno, Tsutomu

, p. 1912 - 1922 (2021)

Regioselective cobalt-catalyzed [2+2+2] cycloaddition using fluorine-containing diynes with nitriles was described. Cycloaddition of fluorinated diynes with nitriles under the influence of CoCl2(phen), zinc bromide, and zinc dust in dichloroethane at 80 °C for 3 h took place smoothly, exclusively affording the corresponding α-fluoroalkylated pyridines in excellent yields. In addition, dinitriles as substrate were also found to be suitable for this reaction, giving the corresponding fluoroalkylated bipyridine derivatives in excellent yields. (Figure presented.).

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