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1097957-52-2

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1097957-52-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1097957-52-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,9,7,9,5 and 7 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1097957-52:
(9*1)+(8*0)+(7*9)+(6*7)+(5*9)+(4*5)+(3*7)+(2*5)+(1*2)=212
212 % 10 = 2
So 1097957-52-2 is a valid CAS Registry Number.

1097957-52-2Relevant articles and documents

ZnCl2-catalyzed intramolecular cyclization reaction of 2-aminochalcones using polymer-supported selenium reagent: Synthesis of 2-phenyl-4-quinolones and 2-phenyl-2,3-dihydroquinolin-4(1 H)-one

Tang,Chen, Bangzheng,Zhang, Lianpeng,Li, Wen,Lin, Jun

experimental part, p. 707 - 711 (2011/04/26)

A new and efficient method for the synthesis of 2-phenyl-4-quinolones and 2-phenyl-2,3-dihydroquinolin-4(1H)-ones is described. The reaction involves ZnCl2-mediated polystyrene-supported selenium-induced intramolecular cyclization of 2-amino-chalcones and subsequent traceless or functionalizing cleavage of selenium linker. Georg Thieme Verlag Stuttgart - New York.

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