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6-bromo-2-(4-methoxyphenyl)-3-nitro-2H-chromene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

57544-04-4

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57544-04-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 57544-04-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,5,4 and 4 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 57544-04:
(7*5)+(6*7)+(5*5)+(4*4)+(3*4)+(2*0)+(1*4)=134
134 % 10 = 4
So 57544-04-4 is a valid CAS Registry Number.

57544-04-4Downstream Products

57544-04-4Relevant academic research and scientific papers

Microwave-assisted One-pot, Three-component Regiospecific and Sterospecific Synthesis of Spiro Indanone Pyrrolidine/Piperidine Fused Nitrochromene Derivatives Through 1,3-Dipolar Cycloaddition Reactions

Nayak, Sabita,Panda, Pravati,Mohapatra, Seetaram,Raiguru, Bishnuprasad,Baral, Nilofar

, p. 1757 - 1770 (2019)

A simple, straightforward, and versatile protocol for the synthesis of spiro indanone pyrrolidine/piperidine fused nitrochromene derivatives is described. The synthesis of a new series of spirocyclic molecules has been expediently accomplished via a one-p

Microwave-assisted rapid and efficient synthesis of chromene-fused pyrrole derivatives through multicomponent reaction and evaluation of antibacterial activity with molecular docking investigation

Baral, Nilofar,Kumar, P. Sudhir,Mishra, Deepak Ranjan,Mishra, Nilima Priyadarsini,Mohapatra, Seetaram,Nayak, Mukesh,Nayak, Sabita,Panda, Pravati,Raiguru, Bishnu Prasad

, (2020/01/03)

The current study aimed to identify a new strategy of FeCl3 catalyzed multicomponent synthesis of substituted 2H-chromene–fused pyrrole derivatives. A series of chromene-based pyrrole prepared by employing an array of 3-nitro-2H-chromenes, anil

Molecular diversity of the domino annulation reaction of 2-aryl-3-nitrochromenes with pivaloylacetonitriles

Jiang, Wang,Sun, Jing,Liu, Ru-Zhang,Yan, Chao-Guo

supporting information, p. 5816 - 5822 (2018/08/21)

In the presence of triethylamine, the domino annulation reaction of two molecules of pivaloylacetonitrile with one molecule of 2-aryl-3-nitrochromene in tetrahydrofuran resulted in the unprecedented imino-substituted dihydrofuro[2,3-c]chromene derivatives in high yields. More importantly, the above domino reaction in refluxing methanol or ethanol afforded alkoxy-substituted chromeno[3,4-b]pyridines in satisfactory yields. However, a similar reaction of benzoylacetonitrile with 2-aryl-3-nitrochromenes in basic medium gave the expected furo[2,3-c]chromene derivatives in moderate yields.

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