331869-77-3

Upstream product

• 90-15-3 α-naphthol 
• 121-33-5 vanillin 
• 109-77-3 malononitrile 
• 3011-34-5 4-hydroxy-3-nitrobenzaldehyde 

Downstream Products

• 1446242-94-9 4-(4-hydroxy-3-methoxyphenyl)-2-oxo-2H-benzo[h]chromene-3-carbonitrile 
• 1393816-54-0 4-(8-amino-9,10,11,12-tetrahydro-7H-benzo[7,8]chromeno[2,3-b]quinolin-7-yl)-2-methoxyphenol 

Relevant academic research and scientific papers

Triethanolamine-catalyzed expeditious and greener synthesis of 2-amino-4H-chromenes

Triethanolamine (TEOA), an inexpensive and eco-friendly base, was used to efficiently catalyze the three-component condensation reaction of heterocyclic/aromatic aldehyde, (α/β)-naphthol, and malononitrile in water to give the corresponding substituted 2-

One-pot catalytic multicomponent synthesis of chromene derivatives by 1-Allyl-3-Methyl-Imidazolium halides

2-amino-3-cyano-4-aryl-4H-benzo[h]chromenes and 2-amino-3- cyano-1-aryl-1H-benzo[f] chromenes were obtained in a one-pot three-component reaction of a or β-naphthol (1a and 1b), aromatic aldehydes (2a-n), malononitrile (3) in the presence of 1-allyl-3-met

Synthesis, screening and docking of fused pyrano[3,2-d]pyrimidine derivatives as xanthine oxidase inhibitor

In view of developing effective xanthine oxidase (XO) enzyme inhibitors, a series of 100 pyrano[3,2-d]pyrimidine derivatives was synthesized and evaluated for its in vitro XO enzyme inhibition. Structure activity relationship has also been established. Am

Synthesis of a novel poly(ethylene glycol) grafted triethylamine functionalized dicationic ionic liquid and its application in one-pot synthesis of 2-amino-2-chromene derivatives in water

A novel poly(ethylene glycol) grafted triethylamine functionalized dicationic ionic liquid has been prepared and characterized. It was successfully used as an efficient catalyst for the three-component synthesis of 2-amino-2-chromene derivatives in water.

Ultrasonic assisted synthesis of chromenes catalyzed by sodium carbonate in aqueous media

A simple, efficient, and environmentally benign procedure for the synthesis of 2-amino-4Hchromene ring has been achieved by the three-component reaction of an aromatic aldehyde, malononitrile and diverse enolizable C-H activated compound under ultrasound

Highly efficient organocatalytic synthesis of diverse and densely functionalized 2-amino-3-cyano-4H-pyrans under mechanochemical ball milling

An improved one-pot three-component and environmentally benign approach for the synthesis of a wide range of densely functionalized 2-amino-3-cyano-4H-pyran annulated derivatives has been described by the reaction of aryl aldehydes, malononitrile and dive

Convenient and efficient one-pot method for the synthesis of 2-amino-tetrahydro-4H-chromenes and 2-amino-4H-benzo[h]-chromenes using catalytic amount of aminofunctionalized MCM-41 in aqueous media

A convenient and efficient one-pot method for the synthesis of 2-amino-tetrahydro-4H-chromene and 2-amino-4H-benzo[h]-chromene derivatives has been developed using a catalytic amount of amino-functionalized MCM-41 in aqueous medium. This efficient techniq

Synthesis of a novel piperidine-functionalized poly(ethylene glycol) bridged dicationic ionic liquid and its application in one-pot synthesis of substituted 2-amino-2-chromenes and 3,4-dihydropyrano[3,2-c]chromenes in aqueous media

A novel piperidine-functionalized poly(ethylene glycol) bridged dicationic ionic liquid was prepared and identified. It was used as a recyclable catalyst for the synthesis of substituted 2-amino-2-chromenes and 3,4-dihydropyrano[3,2- c]chromenes with exce

Highly efficient conversion of fused 2-amino-4-aryl-4H-chromene-3- carbonitriles into fused 2-oxo-4-aryl-2H-chromene-3-carbonitriles using Vilsmeier conditions

A simple, mild, and highly efficient protocol for the synthesis of fused 2-oxo-4-aryl-2H-chromene-3-carbonitriles has been developed starting from fused 2-amino-4-aryl-4H-chromene-3-carbonitriles utilizing Vilsmeier conditions.

A one-pot multicomponent reaction for the synthesis of 2-amino-2-chromenes promoted by N,N-dimethylamino-functionalized basic ionic liquid catalysis under solvent-free condition

A simple, clean, and environmentally benign three-component process to the synthesis of 2-amino-4H-chromenes using N,N- dimethylaminoethylbenzyldimethylammonium chloride, [PhCH2Me 2N+CH2CH2NMe2/