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439277-55-1

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439277-55-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 439277-55-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,9,2,7 and 7 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 439277-55:
(8*4)+(7*3)+(6*9)+(5*2)+(4*7)+(3*7)+(2*5)+(1*5)=181
181 % 10 = 1
So 439277-55-1 is a valid CAS Registry Number.

439277-55-1Relevant articles and documents

Microwave assisted synthesis of imidazo[1,2-a][1,8]Naphthyridin-1(2H)-ones

Mogilaiah,Chowdary, D. Srinivasa,Reddy, P. Raghotham

, p. 857 - 862 (2002)

Synthesis of 2-carboxyalkylamino-3-(p-chlorophenyl)-1,8-naphthyridines and their conversion into novel imidazo [1,2-a][1,8]naphthyridin-1(2H)-ones under microwave irradiation are described.

An Efficient Microwave-Assisted Synthesis of Novel 2-{4-[(3-Aryl-1,8-naphthyridin-2-yl)amino]phenyl}-1H-benzo[de]isoquinoline-1,3(2H)-diones and Their Antimicrobial Activity

Sakram,Ravi,Ashok,Rambabu,Sonyanaik,Kurumanna

, p. 780 - 788 (2018/06/14)

The Buchwald–Hartwig amination reaction between 2-chloro-3-aryl-1,8-naphthyridines and 2-(4-aminophenyl)-1H-benzo[de]isoquinoline-1,3(2H)-dione in the presence of the catalytic system Pd(PPh3)4 and the base KO-t-Bu in toluene was studied. The reaction was initiated by microwave irradiation. Highly efficient synthesis has been developed for 2-{4-[(3-aryl-1,8-naphthyridin-2-yl)amino]phenyl}-1H-benzo[de]isoquinoline-1,3(2H)-diones. Structures of the synthesized compounds were evaluated by IR, 1H and 13C NMR spectroscopy. All products were tested for antimicrobial activity against Escheria coli, Bacillus subtilis, Klebsiella pneumoniae, and Staphylococcus aureus.

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