84319-80-2

Upstream product

• 109-73-9 N-butylamine 
• 5248-11-3 (α6aH,α6bH,α12bH,α12cH)-cyclobuta<1,2-c,4-3-c¹>bis<1>benzopyran-6,7-dione 

Downstream Products

• 84319-81-3 N-butyl-c-3,c-4-bis(2-hydroxyphenyl)-r-1,c-2-cyclobutanedicarboximide 
• 109-73-9 N-butylamine 
• 18221-50-6 dihydroxy-stilbene 
• 35632-97-4 N¹, N⁴-dibutylfumaramide 
• 91-64-5 coumarin 
• 86774-83-6 (E)-N-butyl-3-(2-hydroxyphenyl)acrylamide 

Relevant academic research and scientific papers

REACTION OF SYN HEAD-TO-HEAD COUMARIN DIMER WITH AMINES AND THERMAL BEHAVIOR OF THE ADDUCTS

The lacton-opening reaction of syn head-to-head coumarin dimer with amines gave c-3,c-4-bis(2-hydroxyphenyl)-r-1,c-2-cyclobutanedicarboxamides and/or -dicarboximides.The product ratio of the amide to the imide varied with the reaction temperature and the amount of amine used.Thermal reaction of these lactone-opened derivatives proceeded in two ways depending on the nature of amine moiety to give either the original coumarin dimer or 2,2'-dihydroxystilbene and the maleimide derivative.