36394-23-7

Upstream product

• 81287-12-9 4,5-Dihydroxy-2-phenyl-4-cyclopenten-1,3-dion 
• 36394-22-6 4-hydroxy-5-phenyl-4-cyclopentene-1,3-dione 
• 81287-10-7 3-<(E)-Hydroxyiminomethyl>-4-phenyl-3-cyclobuten-1,2-dion 

Downstream Products

• 36394-24-8 4-Hydroxy-5-phenyl-4-cyclopenten-1,2,3-trion-hydrat 
• 40098-65-5 4,4-Di-p-anisyl-2-hydroxy-1-phenyl-cyclopenten-3,5-dion 
• 40098-67-7 4,4-Di-p-chlorphenyl-2-hydroxy-1-phenyl-cyclopenten-3,5-dion 
• 40098-66-6 1,4-Di-p-chlorphenyl-2-hydroxy-4-phenyl-cyclopenten-3,5-dion 
• 36394-26-0 1-hydroxy-2-phenyl-3,4,5-cyclopentenetrion methyl ether 
• 40098-64-4 2-Hydroxy-1,4,4-triphenyl-cyclopenten-3,5-dion 
• 1232-40-2 1,1,3-triphenyl-2-propanone 
• 36394-25-9 Ag⁽¹⁺⁾*C₁₁H₅O₄^(1-)=AgC₁₁H₅O₄ 

Relevant academic research and scientific papers

Reactions with Cyclobutenediones, LXI. Ring Expansions and Conversions of 3-Alkyl-4-phenylcyclobutenediones

In a novel reaction for the cyclobutenedione system, oxidation of the title compounds 1a and 1b leads to ring expansion with formation of cyclopentenetrione 3 and cyclopentenedione 5.The oximes 6a and b, produced by nitrosation of 1a and b, can be hydrolysed to the ring enlarged structures 4d and 5. 4d is oxidized to 3 and methylated to 7.Beckmann-conversion of 6a and b results in the formation of the amide 10 and the amine 11. 6a is acetylated to 13 or dehydrated to the nitrile 14.