755009-22-4

Upstream product

• 42059-81-4 3-formyl-6-methylchromone 
• 1219020-13-9 6-methyl-3-(p-tolylaminomethylene)-2-(N-p-tolyl)-iminochroman-4-one 
• 755009-13-3 C₁₈H₁₅NO₃ 
• 99-99-0 1-methyl-4-nitrobenzene 

Downstream Products

• 1535170-94-5 4-chloro-3-dichloromethyl-2-N-(p-tolyl)imino-6-methyl-2H-1-benzopyran 
• 1535170-96-7 4-chloro-3-(dichloromethyl)-6-methyl-2H-chromen-2-one 
• 1345096-70-9 C₁₉H₁₇NO₃ 
• 1345096-86-7 C₂₁H₁₉NO₃ 
• 1345096-81-2 C₁₉H₁₇NO₃ 
• 1246677-45-1 6-methyl-2-[N-(4-methylphenyl)-N-(3-phenylprop-2(E)-enyl)amino]-4-oxo-4H-1-benzopyran-3-carboxaldehyde 
• 1293279-26-1 2,12-dimethyl-6,8-di[N-(4-methylphenyl)imino]-7H-pyrano[3,2-c:5,6-c']dicoumarin 
• 1293908-71-0 N-(4-methylphenyl)-6-methylchromone-3-carboxamide 
• 1246677-43-9 6-methyl-2-[N-(4-methylphenyl)-N-(prop-2-enyl)]amino-4-oxo-4H-1-benzopyran-3-carboxaldehyde 
• 1173277-77-4 C₃₅H₃₀N₂O₄ 

Relevant academic research and scientific papers

Regio- and stereoselective synthesis of 1-benzopyrano[2,3-b]pyrrolo[2,3-d] pyridines: A microwave-accelerated intramolecular [3+2] cycloaddition reaction of azomethine ylide

Figure represented. Regio- and stereoselective syntheses of tetracyclic compounds having chromone, pyrrolidine, and piperidine rings have been accomplished by an intramolecular [3+2] cycloaddition reaction involving azomethine ylide. The reactions were ca

A one-pot rearrangement of 2-(N-Alkyl-N-aryl)aminochromone-3-carbaldehyde to N-Alkyl-3-salicyloyl-2-quinolone - An antileishmanial agent

2-(N-Aryl)aminochromone-3-carbaldehyde does not show any change on heating in acetic acid, but under the same reaction conditions 2-(N-alkyl-N-aryl) aminochromone-3-carbaldehyde rearranges to 3-salicyloyl-2-quinolones, which exhibits antileishmanial activ

A one-pot synthesis of 3,3′-methylenebis(2-arylamino-4H-chromen-4-one) from C-(4-oxo-4H-1-benzopyran-3-yl)-N-arylnitrone

2-(Arylamino)-4-oxo-4H-chromene-3-carbaldehyde 3 (R2 = aryl) produces 12H-chromeno[2,3-b]quinolin-12-one 4 when treated with sarcosine, piperidine or diethylamine, but produces 3,3′-methylenebis(2-arylamino-4H-chromen-4-one) 8 when treated with

Reaction of amines with nitrones derived from chromone-3-carbaldehyde

Nitronc 2 derived from 3-formylchromone 1 produces 3-aminomethylene-2- iminochroman-4-one 8 on reaction with primary amine 7, chromenoquinoline 14 with piperidine and dihydrotelraaza[14]annulene 15 with o-phenylenediamine.

Rearrangements of N-alkyl-/aryl-nitrones derived from 4-oxo-4H-1- benzopyran-3-carboxaldehyde - A solvent-dependent process

C-(4-Oxo-4H-1-benzopyran-3-yl)-N-alkyl-/aryl-nitrones derived from 4-oxo-4H-1-benzopyran-3-carboxaldehyde, rearrange to 2-alkyl-/aryl-amino-3- formylchromone and/or 3-(alkyl-/aryl-aminomethylene)chroman-2,4-dione depending upon the reaction medium. 3-(Alkylaminomethylene)chroman-2,4-dione has been utilized in the synthesis of 1-benzopyrano[3,4-d]isoxazole-4-one.

One-pot Synthesis of 2-alkyl/arylamino-4-oxo-4H-1-benzopyran-3-carboxaldehyde from 4-oxo-4H-1-benzopyran-3-carboxaldehyde

Zn/NH4Cl - Mediated reactions of aldehyde 1 with nitro compounds 2 afford 2-(N-alkyl/arylamino)-3-formylchromones 4, which on heating with 70 percent H2SO4 produces 9a-d and 11e-h from 4a-d and 4e-h, respectively.