256378-50-4

Basic information

• Product Name: 2-amino-4-{3-nitrophenyl}-5-oxo-4H,5H-pyrano[3,2-c]chromene-3-carbonitrile
• Synonyms: 2-amino-4-{3-nitrophenyl}-5-oxo-4H,5H-pyrano[3,2-c]chromene-3-carbonitrile
• CAS NO: 256378-50-4
• Molecular Formula: C19H11N3O5
• Molecular Weight: 361.30774
• Mol File: 256378-50-4.mol

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 2-amino-4-{3-nitrophenyl}-5-oxo-4H,5H-pyrano[3,2-c]chromene-3-carbonitrile(CAS DataBase Reference)
• NIST Chemistry Reference: 2-amino-4-{3-nitrophenyl}-5-oxo-4H,5H-pyrano[3,2-c]chromene-3-carbonitrile(256378-50-4)
• EPA Substance Registry System: 2-amino-4-{3-nitrophenyl}-5-oxo-4H,5H-pyrano[3,2-c]chromene-3-carbonitrile(256378-50-4)

Safety Data

• Hazardous Substances Data: 256378-50-4(Hazardous Substances Data)

Upstream product

• 99-61-6 3-nitro-benzaldehyde 
• 109-77-3 malononitrile 
• 22105-09-5 4‐hydroxycoumarin 
• 1076-38-6 4-hydroxy[1]benzopyran-2-one 
• 619-25-0 3-Nitrobenzyl alcohol 
• 104-87-0 4-methyl-benzaldehyde 
• 2826-32-6 3-nitrobenzylidenemalononitrile 

Downstream Products

• 1470027-72-5 8-amino-7-(3-nitrophenyl)-9,10,11,12-tetrahydrochromeno[3',4':5,6]pyrano[2,3-b]quinolin-6(7H)-one 

Relevant articles and documents

Green synthesis of dihydropyrano[3,2-c]chromene derivatives using amino-terminated PAMAM dendrimer as catalyst

d-Sorbitol-cored PAMAM dendrimer (SOR-G1) was effectively synthesized by the ring opening polymerization of epichlorohydrin. The dendrimer was characterized using different spectroscopic and analytical techniques including IR and NMR spectroscopy, TG–DTA,

Choline chloride-coated UiO-66-Urea MOF: A novel multifunctional heterogeneous catalyst for efficient one-pot three-component synthesis of 2-amino-4H-chromenes

A new Zr-based MOF, namely, UiO-66-Urea, was prepared through polymerization between the 2-aminoterephthalate linkers of UiO-66-NH2 MOF and 1,4-phenylene diisocyanate under mild reaction conditions. Post-synthetic coating of UiO-66-Urea with ch

High-efficient synthesis of 2-imino-2H-chromenes and dihydropyrano[c]chromenes using novel and green catalyst (CaO@SiO2@AIL)

In this work, 1,3,5,7-tetraazaadamantan-1-ium chloride (AIL) functionalized silica-coated calcium oxide hybrid nanocatalyst (CaO@SiO2@AIL) as a novel, efficient, green and recyclable heterogeneous ionic liquid catalyst was synthesized. Catalytic activity of the CaO@SiO2@AIL hybrid nanoparticles was investigated for synthesis of the pharmaceutically valuable 2-imino-2H-chromene and dihydropyrano[c]chromene derivatives. A wide range of amines and aromatic aldehydes containing either electron-withdrawing or electron-donating substituent were examined using optimized conditions to produce the desired products. 2-Imino-2H-chromenes were synthesized under solvent-free condition, and dihydropyrano[c]chromenes were prepared in aqueous medium as green conditions within short reaction times, high yields and using easy workup procedures. Structure confirmation and surface properties of the core/shell hybrid nanoparticles were considered via Fourier transform infrared spectroscopy, X-ray powder diffraction, scanning electron microscope, energy-dispersive X-ray spectroscopy, WDS map scan, thermogravimetric and elemental analyses. This IL-supported heterogeneous nanocatalyst can be reused at least six times without considerable loss of its performance.

Zn (II)-Schiff base covalently anchored to CaO@SiO2: A hybrid nanocatalyst for green synthesis of 4H-pyrans

In this study, the Zn (II)-Schiff base covalently anchored onto the surface of CaO@SiO2 nanoparticles. The structure of this hybrid nanomaterial (CaO@SiO2-NH2-Sal-Zn) was characterized using the analytical techniques such

Zr@IL-Fe3O4MNPs as an efficient and green heterogeneous magnetic nanocatalyst for the one-pot three-component synthesis of highly substituted pyran derivatives under solvent-free conditions

The present study was conducted to synthesize Zr@IL-Fe3O4MNPs as a new magnetically recoverable heterogeneous catalyst, which was then characterized by Fourier transform infrared (FT-IR) spectroscopy, energy dispersive X-ray spectros

Silica chemisorbed bis(hydrogensulphato)benzene (SiO2-BHSB) as a new, efficient, and recyclable catalyst for the synthesis of 5-oxopyrono[3,2-c]chromene scaffolds in water-based solvent

The synthesis of silica chemisorbed bis(hydrogensulphato)benzene (SiO2-BHSB) as a new hybrid material was achieved by a sequence of three reactions. Structural features of the synthesized SiO2-BHSB were established by using analytica

A novel magnetically recyclable semi-dendrimer catalyst-based ethanolpyridole supported on ferrite nanoparticles (HNPs@Py) for the synthesis of biscoumarin and dihydropyrano[3,2-c]chromene derivatives

The novel organic–inorganic nanohybrid magnetic nanoparticles (HNPs@Py) were prepared by a simple method and characterized by FT-IR, XRD, FE-SEM, TGA, VSM, EDX, and MAP. The catalytic activity of this new (HNPs@Py) was studied for green synthesis of bisco

New advances in catalytic performance of erbium-folic acid-coated CoFe2O4 complexes for green one-pot three-component synthesis of pyrano[2,3-d]pyrimidinone and dihydropyrano[3,2-c]chromenes compounds in water

In the current research, much attention is paid to heterogenized nanostructure. Herein, we report the green synthesis magnetic nanoparticles (MNPs) of cobalt ferrite by the immobilization of erbium (Er) coated with folic acid (FA) which show effective cat

Efficient and facile synthesis of chromenopyrano[2,3-b] pyridine derivatives catalyzed by sodium carbonate

In this research, a number of new and known chromenopyrano[2,3-b]pyridine derivatives have been prepared. Initially, according to the reported procedure, pyrano[2,3-c]chromene derivatives were synthesized by the reaction between 4-hydroxycoumarin, aromati