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4-(4-Fluoro-benzyl)-2-oxo-1,2-dihydro-quinoline-3-carboxylic acid ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

202923-83-9

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202923-83-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 202923-83-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,2,9,2 and 3 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 202923-83:
(8*2)+(7*0)+(6*2)+(5*9)+(4*2)+(3*3)+(2*8)+(1*3)=109
109 % 10 = 9
So 202923-83-9 is a valid CAS Registry Number.

202923-83-9Relevant academic research and scientific papers

Ethyl N-(o-ethynyl)malonanilide as a useful building block for the preparation of 3,4-disubstituted-2(1H)-quinolones, 3,4-disubstituted- and 2,3,4-trisubstituted quinolines

Arcadi, Antonio,Cacchi, Sandro,Fabrizi, Giancarlo,Manna, Fedele,Pace, Paola

, p. 446 - 448 (2007/10/03)

3,4-Disubstituted-2(1H)-quinolones have been prepared through a procedure based on the palladium-catalysed reaction of the readily available ethyl N-(o-ethynyl))malonanilide with aryl, heteroaryl and vinyl halides or vinyl triflates followed by the cycliz

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