70894-40-5

Upstream product

• 186581-53-3 diazomethane 
• 77316-88-2 7,4'-dihydroxy-2-methylisoflavone 
• 39604-64-3 1-(2-hydroxy-4-methoxyphenyl)-2-(4-methoxyphenyl)ethanone 
• 74-88-4 methyl iodide 
• 127-09-3 sodium acetate 
• 108-24-7 acetic anhydride 
• 13004-42-7 7-hydroxy-3-(4-methoxy-phenyl)-2-methyl-chromen-4-one 
• 487-49-0 1-(2,4-dihydroxyphenyl)-2-(4-methoxyphenyl)ethanone 
• 70460-66-1 7-acetoxy-3-(4-methoxy-phenyl)-2-methyl-chromen-4-one 
• 104-47-2 p-methoxybenzylnitrile 
• 108-46-3 recorcinol 

Downstream Products

• 267002-82-4 2-(bromomethyl)-7,4'-dimethoxyisoflavone 
• 4278-53-9 7-methoxy-3-(4-methoxy-phenyl)-2-methyl-2H-chromene 
• 890633-41-7 5-methoxy-2-[4-(4-methoxyphenyl)-3-methyl-1,2-oxazol-5-yl]phenol 
• 127987-14-8 3-(4-acetoxy-phenyl)-7-methoxy-2-methyl-chromen-4-one 
• 267002-83-5 ethyl 2-cyano-2,2-bis[(7-methoxy-3-(4-methoxyphenyl)-4-oxo-4H-chromen-2-yl)methyl]acetate 
• 267002-84-6 2,2-bis[(7-methoxy-3-(4-methoxyphenyl)-4-oxo-4H-chromen-2-yl)methyl]acetic acid 
• 127987-15-9 3-(4-hydroxy-phenyl)-7-methoxy-2-methyl-chromen-4-one 

Relevant academic research and scientific papers

Reaction of natural isoflavonoids and their analogs with hydroxylamine

Recyclization of the chromone ring in several natural isoflavonoids and their analogs by reaction with hydroxylamine was studied. It has been found that the most suitable base for carrying out the reaction is N-methylmorpholine. Several derivatives of 4-a

Synthesis of C - C-Bridged Bis-Isoflavones

Unique C - C-bridged bis-isoflavones 5, 8, and 9 were obtained by reaction of 2-bromomethyl-7,4′-dimethoxyisoflavone 4 with ethyl cyanoacetate anion or tetraethylammonium cyanide or by Pd-catalyzed ethoxycarbonylation, respectively. The phenolic carboxylic acid 7 is available from 5 in two steps.