72568-56-0

Usage

InChI:InChI=1/C14H14N2O4/c1-3-18-14(17)11-8(2)20-13(16)9(7-15)12(11)10-5-4-6-19-10/h4-6,12H,3,16H2,1-2H3/t12-/m0/s1

Upstream product

• 3237-22-7 2-cyano-3-(2-furanyl)acrylonitrile 
• 141-97-9 ethyl acetoacetate 
• 98-01-1 furfural 
• 109-77-3 malononitrile 

Relevant academic research and scientific papers

One-pot synthesis of 2-amino-3-cyano-4H-pyrans and pyran-annulated heterocycles using sodium citrate as an organo-salt based catalyst in aqueous ethanol

Sodium citrate as a highly efficient catalyst is developed for the synthesis of functionalized 2-amino-3-cyano-4H-pyrans and pyran-annulated heterocycles. This method involves a one-pot three-component reaction of aromatic aldehydes, malononitrile and 1,3

Ferric Sulfasalazine Sulfa Drug Complex Supported on Cobalt Ferrite Cellulose; Evaluation of Its Activity in MCRs

Abstract: The green and nano catalyst was simply prepared through the reaction of ferric sulfasalazine with nanomaterial CoFe2O4-cellulose as a magnetic biopolymer surface. This novel heterogeneous organometallic catalyst was charact

Preparation and characterization of Ca-modified Co/Al2O3 and its catalytic application in the one-pot synthesis of 4H-pyrans

Abstract: In this research, Co/Ca–Al2O3 composite as a heterogeneous nanocatalyst was synthesized by the co-precipitation method. The effect of Ca addition on the textural properties and the catalytic activity was investigated. The r

New application of decaniobate salt as basic solid in the synthesis of 4H-pyrans by microwave assisted multicomponent reactions

This study focuses on the search of new applications of polyoxometalates known as decaniobate ions [Nb10O28]6?. The decaniobates can be used as basic solid catalysts in multicomponent reactions to obtain good yields to 4H-pyrans (> 95%) under microwave radiation and solvent-free conditions, using several aldehydes with different electron-withdrawing or electron donor substituents. The synthesis of (TMA)6 [Nb10O28]6H2O was performed following a simple protocol (HPNb), which was modified to decrease the number of hexaniobate species that are formed as impurities (HPNb-HF).

DABCO catalyzed green and efficient synthesis of 2-Amino-4H-Pyrans and their biological evaluation as antimicrobial and anticancer agents

Aim and Objective: The present method is simple, green and highly efficient for the synthesis of 2-amino-4H-pyran derivatives which are achieved by a one pot three component cyclocondensation of aldehyde, malanonitrile and ethyl acetoacetate or methyl acetoacetate using DABCO under solvent free with grinding conditions at room temperature. Material and Methods: Some of the synthesized compounds were screened for their antimicrobial and antifungal activity. The study shows that these compounds show good antimicrobial activity. Furthermore, eight of the synthesized compounds were selected for screening of their anticancer activity against human astrocytoma-glioblastoma cell line (U373MG). Some of the compounds show good anticancer activity. Result: Grinding synthesis of 2-amino-4H-pyran derivatives catalyzed by DABCO with various aromatic aldehydes under solvent-free conditions at room temperature was examined. The obtained compounds (22 entries) were well synthesized in good to excellent yields. Conclusion: The present method is simple, rapid, and most efficient green protocol for the synthesis of 2-amino-4H-pyran derivatives using highly inexpensive and easily available DABCO as an efficient catalyst under grinding and solvent free condition at room temperature.

Organocatalytic mediated green approach: A versatile new L-valine promoted synthesis of diverse and densely functionalized 2-amino-3-cyano-4H-pyrans

The discovery of a new L-valine promoted facile and versatile green synthesis of diversified 2-amino-3-cyano-4H-pyrans using a one pot multicomponent-tandem reaction of aromatic aldehydes, malononitrile, and diverse electron-rich enolizable carbonyl compo

Polypyrrole/Fe3O4/CNT as a recyclable and highly efficient catalyst for one-pot three-component synthesis of pyran derivatives

Polypyrrole (PPY)/Fe3O4/CNT has been synthesized and characterized by FT-IR, TEM and SEM techniques and its catalytic activity has been evaluated in the synthesis of several series of pyran derivatives. Tetrahydrobenzo[b]pyranes, 4H-

Synthesis of functionalized chromene and spirochromenes using L-proline-melamine as highly efficient and recyclable homogeneous catalyst at room temperature

An efficient and recyclable homogeneous catalyst is developed using commercially cheap L-proline and melamine for the synthesis of chromenes and spirochromenes (spirooxindoles) via multicomponent reactions at room temperature. Systematic studies were conducted in order to achieve desired reactivity and recyclability of the catalyst using various α-amino acids and aromatic amines as donor-acceptor pairs. Among the screened combinations, L-proline and melamine (3:1 ratio; 3 mol% on total weight) was found to be best catalyst to give the desired products with excellent yields (up to 99%) in very short times (1–15 min) at room temperature in DMSO as solvent. The catalyst was recovered by adding EtOAc and reused up to 5 cycles without losing the catalytic activity.

Iodine catalyzed simple and efficient synthesis of antiproliferative 2-pyridones

A simple and efficient method for the selective synthesis of 2-pyrdones from 4H-pyrans using iodine as catalyst and ethanol as solvent was developed. The present method is equally effective for both aromatic and hetero aromatic ring containing 4H-pyrans.

Salicyldimine-based Schiff's complex of copper(II) as an efficient catalyst for the synthesis of nitrogen and oxygen heterocycles

In the present paper, we have reported the synthesis of an imine-based silica-functionalized copper(II) catalyst using salicyldehyde as a ligand. Furthermore, the catalyst is characterized through various spectroscopic techniques, namely FTIR, XRD, TGA, E