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55424-90-3

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55424-90-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 55424-90-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,4,2 and 4 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 55424-90:
(7*5)+(6*5)+(5*4)+(4*2)+(3*4)+(2*9)+(1*0)=123
123 % 10 = 3
So 55424-90-3 is a valid CAS Registry Number.

55424-90-3Relevant articles and documents

Copper(II) acetate/oxygen-mediated nucleophilic addition and intramolecular C-H activation/C-N or C-C bond formation: One-pot synthesis of benzimidazoles or quinazolines

He, Hua-Feng,Wang, Zhi-Jing,Bao, Weiliang

supporting information; experimental part, p. 2905 - 2912 (2010/12/29)

Diarylcarbodiimides or benzylphenylcarbodiimides are converted to 1,2-disubstituted benzimidazoles or 1,2-disustituted quinazolines via addition/intramolecular C-H bond activation/C-N or C-C bond forming reaction using copper(II) acetate/oxygen [Cu(OAc)2/O2] as the oxidant at 100°C in one-pot cascade procedure. Copyright

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