72139-49-2

Upstream product

• 123-75-1 pyrrolidine 
• 36937-71-0 3-cyano-2-iminocoumarin 
• 90-02-8 salicylaldehyde 
• 109-77-3 malononitrile 

Relevant academic research and scientific papers

Synthesis, Characterization, and Heterogeneous Catalytic Activity of Sulfamic Acid Functionalized Magnetic IRMOF-3

In this work, post-synthesis modification of Fe3O4/IRMOF-3 nanocomposite with chlorosulfonic acid groups afforded sulfamic acid-functionalized magnetic metal-organic frameworks (Fe3O4/IRMOF-3/SO3H). F

A nano silver-xerogel (Ag nps@modified TEOS) as a newly developed nanocatalyst in the synthesis of benzopyranopyrimidines (with secondary and primary amines) and: Gem -bisamides

Silver nanoparticles have been prepared from a chemical reduction approach and supported on modified TEOS (tetraethylorthosilicate) xerogels to be studied as a nanocatalyst in the conversions of benzopyranopyrimidines (with primary as well as secondary am

Synthesis of benzopyrano[2,3-d]pyrimidines using silica-bonded N-propylpiperazine sodium N-propionate as heterogeneous solid base catalyst under solvent-free conditions

Silica-bonded N-propylpiperazine sodium Npropionate is employed as a recyclable heterogeneous solid base catalyst for the synthesis of benzopyrano[2,3-d]pyrimidines through one-pot condensation reaction of salicylaldehydes, malononitrile, and secondary amines at room temperature under solvent-free conditions. The catalyst could be recycled several times without appreciable loss in catalytic activity.

A novel, facile, rapid, solvent free protocol for the one pot green synthesis of chromeno[2,3-d]pyrimidines using reusable nano ZnAl2O4 - A NOSE approach and photophysical studies

The current protocol resulted in the preparation of an eco-friendly, highly stable, reusable nano ZnAl2O4 and for the first time this was used as an excellent catalyst for the pseudo four component synthesis of a library of fluorescent chromeno[2,3-d]pyrimidine derivatives. This novel protocol involved the grinding of salicylaldehydes, malononitrile and secondary amines in the presence of a catalytic amount of nano ZnAl2O4 at room temperature which was an extremely simple, facile, cost effective, solvent free protocol and also required just two minutes to achieve the products with excellent yields. The synthesized chromeno[2,3-d]pyrimidine derivatives showed significant absorption and emission properties and large Stoke's shift values due to their characteristic feature of an excited state intramolecular proton transfer (ESIPT) mechanism. Nano ZnAl2O4 exhibited better catalytic activity than that of the bulk due to its larger surface area of 63 m2 g-1, and was recycled 5 times without loss of activity.

Covalently anchored 2-amino ethyl-3-propyl imidazolium bromideon SBA-15 as a green, efficient and reusable Br?nsted basic ionic liquid nanocatalyst for one-pot solvent-free synthesis of benzopyranopyrimidines under ultrasonic irradiation

In the present study, highly ordered mesoporous SBA-15 having Br?nsted basic ionic liquid pore channels was synthesized via a surfactant-templated sol-gel methodology and a post modification process. For this, well ordered mesoporous chloro-functionalized

Catalyst-free access to pseudo multi-component synthesis of benzopyranopyrimidines

A catalyst-free multi-component reaction of salicylaldehyde, malononitrile and secondary amine leads to the formation of benzopyranopyrimidines with intense fluorescence emission behavior is described. The method is simple, eco-friendly, economic, operable under mild conditions, having short reaction time, high yields and easy work-up procedure which suggests broad applicability of the protocol.

Silica nanoparticles immobilized benzoylthiourea ferrous complex as an efficient and reusable catalyst for one-pot synthesis of benzopyranopyrimidines

Benzoylthiourea Fe(II) complex was supported on silica nanoparticles and employed as a heterogeneous catalyst in preparation of benzopyranopyrimidines through one-pot condensation reaction of salicylaldehydes, malononitrile and secondary amines in EtOH, a

New HA 14-1 analogues: Synthesis of 2-amino-4-cyano-4H-chromenes

The synthesis of 2-amino-4-cyano-4H-chromene derivatives as new HA 14-1 analogues by a simple and efficient method is reported. In addition, the reaction of 2-amino-2H-chromene-3-carbonitriles, salicylaldehydes and amines results in the formation of new c