149550-36-7

Basic information

• Product Name: 4H-Naphtho[1,2-b]pyran-3-carbonitrile,2-amino-4-(3-nitrophenyl)-
• Synonyms: 4H-Naphtho[1,2-b]pyran-3-carbonitrile,2-amino-4-(3-nitrophenyl)-
• CAS NO: 149550-36-7
• Molecular Formula: C₂₀H₁₃N₃O₃
• Molecular Weight: 343.33552
• Mol File: 149550-36-7.mol
• Article Data: 64

Chemical Properties

• Melting Point: 212-214 °C(Solv: methanol (67-56-1))
• Boiling Point: 588.8°C at 760 mmHg
• Flash Point: 309.9°C
• Appearance: /
• Density: 1.43g/cm³
• Vapor Pressure: 7.66E-14mmHg at 25°C
• Refractive Index: 1.74
• PKA: 2.77±0.40(Predicted)
• CAS DataBase Reference: 4H-Naphtho[1,2-b]pyran-3-carbonitrile,2-amino-4-(3-nitrophenyl)-(CAS DataBase Reference)
• NIST Chemistry Reference: 4H-Naphtho[1,2-b]pyran-3-carbonitrile,2-amino-4-(3-nitrophenyl)-(149550-36-7)
• EPA Substance Registry System: 4H-Naphtho[1,2-b]pyran-3-carbonitrile,2-amino-4-(3-nitrophenyl)-(149550-36-7)

Safety Data

• Hazardous Substances Data: 149550-36-7(Hazardous Substances Data)

Usage

Chemical structure

naphthopyran derivative with a carbonitrile group and an amino group substituted with a 3-nitrophenyl group

Potential applications

organic synthesis and pharmaceutical research

Biological activities

subject of interest for further investigation and development in terms of potential medicinal uses

InChI:InChI=1/C20H13N3O3/c21-11-17-18(13-5-3-6-14(10-13)23(24)25)16-9-8-12-4-1-2-7-15(12)19(16)26-20(17)22/h1-10,18H,22H2

Upstream product

• 90-15-3 α-naphthol 
• 619-25-0 3-Nitrobenzyl alcohol 
• 109-77-3 malononitrile 
• 99-61-6 3-nitro-benzaldehyde 

Downstream Products

• 173606-34-3 C₁₉H₁₃NO₄ 
• 1446242-93-8 4-(3-nitrophenyl)-2-oxo-2H-benzo[h]chromene-3-carbonitrile 
• 153855-31-3 ethyl N-3-cyano-4-(3-nitrophenyl)-4H-benzo[h]chromen-2-ylformimidate 
• 1192821-03-6 7-(3-nitrophenyl)-9,10,11,12-tetrahydro-7H-14-oxa-13-azabenzo[a]naphthacen-8-ylamine 
• 159501-87-8 4-(3-nitrophenyl)-2-(1-pyrrolyl)-4H-naphtho[1,2-b]pyran-3-carbonitrile 

Relevant articles and documents

Biocompatible Ionic Liquid Promote One-Pot Synthesis of 2-Amino-4H-Chromenes Under Ambient Conditions

Abstract: The synthesis of 2-amino-4H-chromenes through one-pot multicomponent reactions has received great attention due to the high atom efficiency and the broad bioactivities of the products. Here, the catalytic performances of a series of functional ionic liquids towards this type of reaction were investigated and the results showed that the ionic liquid, choline acetate ([Choline][Ac]), could efficiently promote this reactions under room temperature without the necessary of organic solvents. The reaction is easy to be conducted and the following work-up procedures are very simple. The pure products can be obtained through extraction and washing procedures, no column separation procedures are needed. Intriguingly, this reaction system can be easily scaled up to multi-gram, suggesting its perspective in industrial applications. In addition, the ionic liquid [Choline][Ac] can be easily prepared from cheap and biocompatible materials, and it can be feasibly recycled and reutilized for at least five cycles. Graphic Abstract: Various aldehydes, malononitrile and activated phenols could be converted to thecorresponding 2-amino-4H-chromenes with good to excellent isolated yields underthe catalysis of choline acetate at room temperature. [Figure not available: see fulltext.]

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

Ultrasonic accelerated efficient synthesis of aminobenzochromenes using Ag2Cr2O7 nanoparticles as a reusable heterogeneous catalyst

Ag2Cr2O7 nanoparticles were found to be an exceedingly effective catalyst for the mild and green synthesis of aminobenzochromenes. The reaction was performed under ultrasonic irradiation as an innocuous tool and in water a