92508-54-8

Upstream product

• 94-02-0 ethyl 3-oxo-3-phenylpropionate 
• 90-02-8 salicylaldehyde 
• 92508-50-4 3-(1-Propanoyloxybenzyl)-2-oxo-2H-1-benzopyrane 
• 1846-74-8 3-benzoyl-chromen-2-one 
• 7216-47-9 3-benzoyl-3,4-dihydrocoumarin 
• 92508-51-5 3-(1-butyryloxybenzyl)-2-oxo-2H-1-benzopyran 

Relevant academic research and scientific papers

Synthesis and biological evaluation of novel 3-benzylcoumarin-imidazolium salts

A series of novel 3-benzylcoumarin-imidazolium salts were prepared and evaluated in vitro against a panel of human tumor cell lines. The results showed that the existence of 5,6-dimethyl-benzimidazole ring and substitution of the imidazolyl-3-position wit

3-benzyl substituted coumarin-imidazole salt compounds and preparation method thereof

The invention discloses a series of 3-benzyl substituted coumarin-imidazole salt compounds and a preparation method thereof. Salicylaldehyde and ethyl benzoylacetate are used as raw materials for Knoevenagel condensation and transesterification to synthes

Thermal Transformations of Some 3-Acyl-2-oxo-2H-1-benzopyrans with Acid Anhydrides

The reaction of 3-benzoyl- and 3-acetyl-2-oxo-2H-1-benzopyrans (4 and 5) with acid anhydrides in the presence of sodium acetate or triethylamine has been studied.With propionic, butyric and isobutyric acid anhydrides, 4 affords the rearrangement products 6 and 7, dilactones (8) and benzyl esters (9), whereas with acetic anhydride 6a, 10, 11 and 12 are obtained.The reaction of 5 with acetic and propionic acid anhydrides affords 6e, 8f and 9f.Conversion of 9c into different products under acidic conditions has also been studied.