159685-73-1

Upstream product

• 555-16-8 4-nitrobenzaldehdye 
• 135-19-3 β-naphthol 
• 109-77-3 malononitrile 

Downstream Products

• 1021873-85-7 14?(4?nitrophenyl)?10,11,12,14?tetrahydro?9H?benzo[5,6]chromeno[2,3?b]quinolin?13?amine 
• 1021873-89-1 C₂₆H₂₃N₃O₄ 
• 1120295-42-2 C₂₁H₁₃N₃O₃S₂ 
• 1120295-55-7 C₂₇H₁₈N₄O₃S 
• 1192821-02-5 13-(4-nitrophenyl)-9,10,11,13-tetrahydro-7-oxa-8-azabenzo[a]cyclopenta[l]anthracen-12-ylamine 
• 1374759-67-7 1-(4-nitrophenyl)-1,2-dihydro-3H-naphtho[2,1-b]pyran-3-one 

Relevant academic research and scientific papers

Selectfluor promoted environmental-friendly synthesis of 2H-Chromen-2-ones derivatives under various reaction conditions

A simple, clean and benign route to the synthesis of 2H-chromen-2-ones derivatives through one-pot condensation of β- ketoesters and substituted phenols in the presence of 1-chloromethyl-4-fluoro-1,4-diazoniabicyclo[2.2.2] octane bistetrafluoroborateis (SelectfluorF-TEDA-BF4) as catalyst under solvent free reaction conditions was experimented. The application of ultrasonic irradiation improved the yields and reduced the reaction times. The use of selectfluor catalyst is feasible because of its stability, commercial value, easy handling, easy recovery and good activity. To extend our research, the ability of selectfluor for the synthesis of 2-aminochromene derivatives was also examined.

Bipyridinium chloride supported rice husk silica: An efficient nanocomposite for the one-pot preparation of spirooxindole pyran and 2-amino-4h-chromene derivatives

In this paper, rice-husk-silica supported n-propyl bipyridinium chloride (RHPrBPCl) has been prepared as a heterogeneous catalyst. RHPrBPCl has been successfully applied in the one-pot preparation of spirooxindole pyran and 2-amino- 4H-chromene derivative

Synthesis and characterization of pine-cone derived carbon-based solid acid: A green and recoverable catalyst for the synthesis of pyra-no_pyrazole, amino-benzochromene, amidoalkyl naphthol and thiazoli-dinedione derivatives

In this report, SO3H-functionalized Carbon nanoparticles (Pine-SO3H) with high acid density have been synthesized by the thermal treatment of sulfuric acid with Pine-Cone as carbon-based at 180oC in a sealed autoclave in a

Choline chloride/pentaerythritol: a deep eutectic solvent for the synthesis of pyran and chromene derivatives

Abstract: A novel deep eutectic solvent system was prepared by mixing choline chloride as a hydrogen-bond acceptor with 2,2-bis(hydroxymethyl)propane-1,3-diol (pentaerythritol) as a hydrogen-bond donor. This green solvent was used for the one-pot synthesi

Synthesis of 2-amino-3-cyano-4H-pyran derivatives using GO-Fc@Fe3O4 nanohybrid as a novel recyclable heterogeneous nanocatalyst and preparation of tacrine-naphthopyran hybrids as AChE inhibitors

Abstract: GO-Fc@Fe3O4 nanohybrid as a powerful and reusable nanocatalyst was synthesized. The graphene oxide (GO) sheets with meta-chloroperoxybenzoic acid (mCPBA) were treatment, afterward were chemically modified with 4-Fc derivati

MCM-41@Schiff base-Co(OAc)2 as an efficient catalyst for the synthesis of pyran derivatives

Heterogeneous ordered mesoporous silica materials catalyst, MCM-41@Schiff base-Co(AcO)2, reveals high catalytic performance within the synthesis of pyran derivatives using the multicomponent reaction of aldehydes, malononitrile and 2-naphthol (

One-pot Synthesis of 2-Amino-4H-Chromenes using Chicken Eggshell Waste as Green Catalyst under Solvent-Free Conditions

Chicken eggshell waste has been employed as green and efficient catalyst for the preparation of 2-amino-4H-chromenes. The aromatic aldehydes were condensed with malononitrile and 1-naphthol or 2-naphthol under solvent-free condition in the presence of chi

Synthesis and characterization of a novel Fe3O4@SiO2-BenzIm-Fc[Cl]/BiOCl nano-composite and its efficient catalytic activity in the ultrasound-assisted synthesis of diverse chromene analogs

In this study, a novel magnetically recoverable Fe3O4@SiO2-BenzIm-Fc[Cl]/BiOCl nano-composite was synthesized using a simple chemical co-precipitation method. This is the first time that a magnetic nano-catalyst bearing ionic liquid, ferrocene and BiOCl is synthesized. The Fe3O4@SiO2-BenzIm-Fc[Cl]/BiOCl nano-composite was characterized by Fourier-transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDX) and field emission scanning electron microscopy (FE-SEM) techniques. The catalytic activities of the novel magnetic nano-composite were evaluated in one-pot three-component synthesis of a wide variety of 2-amino-3-cyano-4H-chromene derivatives under ultrasound irradiation. A simple, facile and highly efficient ultrasound-assisted method was developed to synthesize 4H-chromene derivatives via one-pot, three-component reaction of aldehyde, malononitrile and active phenolic compounds (2-naphthol, 1-naphthol, 3-(dimethylamino)phenol, resorcinol and orcinol) at room temperature. The reaction of aldehyde, malononitrile and orcinol is newly introduced in this paper. The ultrasound-assisted synthesis protocol that was studied in this article exhibits some notable advantages such as short reaction times, operational simplicity, green reaction conditions, high yields and easy work-up and purification steps. In addition, the novel magnetic nano-composite could be easily recovered by an external magnetic field and reused for six-reaction cycles without significant loss of its catalytic activity.

Bipyridinium chloride supported rice husk silica: An efficient nanocomposite for the one-pot preparation of spirooxindole pyran and 2-amino-4H-chromene derivatives

In this paper, rice-husk-silica supported n-propyl bipyridinium chloride (RHPrBPCl) has been prepared as a heterogeneous catalyst. RHPrBPCl has been successfully applied in the one-pot preparation of spirooxindole pyran and 2-amino-4H-chromene derivatives

Zn(L-proline)2 as an efficient and reusable catalyst for the multi-component synthesis of pyran-annulated heterocyclic compounds

We have developed a simple, straightforward and highly efficient multi-component one-pot synthesis of 2-amino-3-cyano-4H-pyrans and pyran-annulated heterocyclic compounds. Zn(L-proline)2 has been utilized as a mild and efficient Lewis acid cata