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914222-57-4

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914222-57-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 914222-57-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,4,2,2 and 2 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 914222-57:
(8*9)+(7*1)+(6*4)+(5*2)+(4*2)+(3*2)+(2*5)+(1*7)=144
144 % 10 = 4
So 914222-57-4 is a valid CAS Registry Number.

914222-57-4Relevant articles and documents

Carbonylative Sonogashira annulation sequence: One-pot synthesis of 4-quinolone and 4H-chromen-4-one derivatives

Ghosh, Prasanjit,Nandi, Aritra Kumar,Das, Sajal

, p. 2025 - 2029 (2018/04/25)

Carbonylative Sonogashira annulation sequence for one pot synthesis of 4-quinolone and 4H-chromen-4-one has been developed in presence of Pd-NHC catalyst. Substituted 2-iodoaniline and 2-iodophenol independently underwent in the carbonylative Sonogashira

From Ketones, Amines, and Carbon Monoxide to 4-Quinolones: Palladium-Catalyzed Oxidative Carbonylation

Wu, Jiwei,Zhou, Yuchen,Wu, Ting,Zhou, Yi,Chiang, Chien-Wei,Lei, Aiwen

supporting information, p. 6432 - 6435 (2017/12/08)

A novel method of palladium-catalyzed oxidative carbonylation of ketones, amines, and carbon monoxide for the synthesis of 4-quinolones has been developed. This protocol provides a straightforward route to construct useful 4-quinolone derivatives from ine

An efficient one-step synthesis of 2-arylquinolin-4(1H)-ones with the aid of a low-valent titanium reagent

Sun, Fang,Zhao, Xuan,Shi, Daqing

supporting information; experimental part, p. 5633 - 5635 (2011/11/06)

A short and facile synthesis of a series of 2-arylquinolin-4(1H)-ones was accomplished in good yields via the novel reductive cyclization of 2-nitrochalcones promoted by TiCl4/Zn. This method has the advantages of accessible starting materials,

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