115271-41-5

Upstream product

• 108-31-6 maleic anhydride 
• 109250-76-2 7-methyl-4-trans!-styryl-coumarin 

Downstream Products

• 134778-86-2 7-(4-Bromo-benzoyl)-3-methyl-6-oxo-9-phenyl-6a,7,8,9-tetrahydro-6H-benzo[c]chromene-8-carboxylic acid 
• 134778-85-1 7-(3-Bromo-4-methyl-benzoyl)-3-methyl-6-oxo-9-phenyl-6a,7,8,9-tetrahydro-6H-benzo[c]chromene-8-carboxylic acid 
• 119249-25-1 7-methyl-11-phenyl-2-p-tolyl-3a,3b,11,11a-tetrahydro-chromeno[3,4-e]isoindole-1,3,4-trione 
• 134778-75-9 2-(4-Methoxy-phenyl)-7-methyl-11-phenyl-3a,3b,11,11a-tetrahydro-chromeno[3,4-e]isoindole-1,3,4-trione 
• 134778-79-3 3-Benzoyl-8-methyl-12-phenyl-2,3,4a,4b,12,12a-hexahydro-6-oxa-2,3-diaza-chrysene-1,4,5-trione 
• 134778-87-3 3-Methyl-6-oxo-9-phenyl-7-propionyl-6a,7,8,9-tetrahydro-6H-benzo[c]chromene-8-carboxylic acid 
• 134778-80-6 3-Acetyl-8-methyl-12-phenyl-2,3,4a,4b,12,12a-hexahydro-6-oxa-2,3-diaza-chrysene-1,4,5-trione 
• 134778-77-1 2-Butyl-7-methyl-11-phenyl-3a,3b,11,11a-tetrahydro-chromeno[3,4-e]isoindole-1,3,4-trione 
• 134809-81-7 8-Methyl-3,12-diphenyl-2,3,4a,4b,12,12a-hexahydro-6-oxa-2,3-diaza-chrysene-1,4,5-trione 
• 134778-71-5 2,7-Dimethyl-11-phenyl-3a,3b,11,11a-tetrahydro-chromeno[3,4-e]isoindole-1,3,4-trione 
• 134778-73-7 2-Benzyl-7-methyl-11-phenyl-3a,3b,11,11a-tetrahydro-chromeno[3,4-e]isoindole-1,3,4-trione 
• 134778-84-0 7-Benzoyl-3-methyl-6-oxo-9-phenyl-6a,7,8,9-tetrahydro-6H-benzo[c]chromene-8-carboxylic acid 
• 134778-83-9 (8-Methyl-4,5-dioxo-3,12-diphenyl-4,4a,4b,5,12,12a-hexahydro-3H-6-oxa-2,3-diaza-chrysen-1-yloxy)-acetic acid ethyl ester 
• 134778-82-8 1-Ethoxy-8-methyl-3,12-diphenyl-4a,4b,12,12a-tetrahydro-3H-6-oxa-2,3-diaza-chrysene-4,5-dione 

Relevant academic research and scientific papers

Synthesis and some reactions of 7-methylcoumarin-4-acetic acid

7-Methylcoumarin-4-acetic acid (1) has been prepared and condensed with aromatic aldehydes to give the corresponding 4-(2-arylethenyl)-7-methyl-2H-1-benzopyran-2-ones (IIa,b).The cycloaddition of IIa,b with maleic anhydride gives the corresponding Diels-Alder adducts (IIIa,b) and (IV).Action of primary amines or hydrazines on III affords the corresponding N-alkyl/N-aryl derivatives (Va-h) and benzopyrano phthalazinetriones (VIa-d), respectively.Reaction of IIIa with aromatic and aliphatic hydrocarbons under Friedel-Crafts conditions gives 7-(aryl-or alkyl-carbonyl) derivatives (VIII).