75670-78-9

Upstream product

• 34000-31-2 2',4-dihydroxychalcone 
• 71906-94-0 2-(4-hydroxy-phenyl)-chroman-4-one (E)-oxime 
• 123-08-0 4-hydroxy-benzaldehyde 
• 118-93-4 o-hydroxyacetophenone 

Downstream Products

• 82340-51-0 3-(2-acetoxyphenyl)-5-(4-acetoxyphenyl)-isoxazole 
• 22439-75-4 3-(2-hydroxyphenyl)-5-(4-hydroxyphenyl)-isoxazole 
• 75670-82-5 3-(2-acetoxyphenyl)-5-(4-acetoxyphenyl)-Δ²-isoxazoline 

Relevant academic research and scientific papers

CHALCONE OXIMES. PART V. REACTION OF HYDROXYLAMINE WITH 4-SUBSTITUTED 2'-HYDROXYCHALCONES

The reactions of hydroxylamine with 4-substituted 2'-hydroxychalcones have been investigated.Formation of products of 1,2 addition and simultaneous 1,4 and 1,2 addition for R = -CH3, -Cl have been established.Products of 1,2 addition for R = -OCH3 and of

CHALCONE OXIMES. PART VI NOVEL REARRANGEMENT OF 2,3-DIHYDRO-BENZO-γ-PYRONE OXIMES INTO Δ2-ISOXAZOLINE DERIVATIVES

The (E) 2,3-dihydro-2-(R-phenyl)-4H-benzopyran-4-one oximes (1a-f) have been transformed into corresponding isomeric Δ2-isoxazolines (2a-f) by treatment with trifluoroacetic acid.