132018-11-2

Upstream product

• 1002130-71-3 methyl 3-[2-(methoxymethoxy)phenyl]propiolate 
• 555-16-8 4-nitrobenzaldehdye 
• 1417564-53-4 methyl 4-hydroxy-2-(4-nitrophenyl)-2H-chromene-3-carboxylate 
• 425686-45-9 methyl 3-(2-hydroxyphenyl)propiolate 
• 118-93-4 o-hydroxyacetophenone 
• 20349-86-4 Methyl 3-(2-hydroxy-phenyl)-3-oxopropanoate 
• 122-04-3 4-nitro-benzoyl chloride 

Downstream Products

• 19725-49-6 4'-nitroflavone 
• 132018-26-9 2-(4-aminophenyl)-3-(methoxycarbonyl)-4H-benzopyran-4-one 
• 132018-18-9 2-(4-nitrophenyl)-4-oxo-4H-benzopyran-3-carboxylic acid 
• 19093-64-2 4'-Aminoflavone 
• 132018-27-0 4-Oxo-2-[4-(3,4,5-trimethoxy-benzoylamino)-phenyl]-4H-chromene-3-carboxylic acid methyl ester 

Relevant academic research and scientific papers

One-pot synthesis of 2-aryl-3-alkoxycarbonyl chromones through a cascade Lewis acid-catalyzed aldehyde olefination/oxa-Michael addition/oxidation

2-Aryl-3-alkoxycarbonyl chromones were effectively constructed from aryl aldehydes and 3-(2-(methoxymethoxy) phenyl)propiolates via a cascade Lewis acid catalyzed phenol ether deprotection/aldehyde olefination/intramolecular oxa-Michael addition reaction, and a sequential oxidation. This four-step reaction could be conducted in one-pot with high atom efficiency.

Synthesis and Protein-Tyrosine Kinase Inhibitory Activities of Flavanoid Analogues

Treatment of o-hydroxyacetophenones 2a-e with excess lithium bis(trimethylsilyl)amide followed by dialkyl carbonates gave 3-(2-hydroxyaryl)-3-oxopropanoates 3a-e.The latter substances were transformed through the reaction of their magnesium chelates with