74976-09-3

Upstream product

• 55991-67-8 5-phenylfuran-2,3-dione 
• 108-95-2 phenol 
• 4279-76-9 phenoxyacetylene 
• 65-85-0 benzoic acid 
• 32133-72-5 1-phenoxyvinyl benzoate 

Downstream Products

• 1127-35-1 1-benzothiophen-3(2H)-one 1,1-dioxide 
• 1637436-88-4 phenyl (S)-2-benzoyl-2-hydroxy-4-phenylpent-4-enoate 
• 1637436-62-4 phenyl 2-diazo-3-oxo-3-phenylpropanoate 
• 1637437-10-5 phenyl 2,3-dioxo-3-phenylpropanoate 
• 1637436-74-8 C₁₅H₁₂O₅ 
• 130082-51-8 (3'R,4'S)-1,5,2',4',5'-Pentaphenyl-3',4'-dihydro-1H,2'H-[3,3']bipyrazolyl-4-carboxylic acid ethyl ester 
• 130082-45-0 1,5-Diphenyl-3-((E)-styryl)-1H-pyrazole-4-carboxylic acid phenyl ester 

Relevant academic research and scientific papers

One-Pot Reaction of Carboxylic Acids and Ynol Ethers for the Synthesis of β-Keto Esters

An one-pot reaction of carboxylic acids and ynol ethers for the synthesis of β-keto esters has been developed. Under promotion of Ag2O, various carboxylic acids and ynol ethers could transform to α-acyloxy enol esters, which undergo a following DMAP-catalyzed rearrangement to deliver β-keto esters rapidly. This method provides a direct approach to β-keto esters from carboxylic acids without any preactivation. The protocol features mild reaction conditions, broad substrate scope, and the products could be transformed to an array of compounds.

FIVE-MEMBERED 2,3-DIOXOHETEROCYCLES. IV. AROYLACETYLATION OF PHENOLS BY 5-ARYL-2,3-DIHYDROFURAN-2,3-DIONES

Phenyl aroylacetates were obtained by the reaction of phenols and pyrocatechol with 5-aryl-2,3-dihydrofuran-2,3-diones under conditions for the decarbonylation of the latter.The reaction between 5-aryl-2,3-dihydrofuran-2,3-diones and salicylaldehyde and 2-hydroxynapthaldehyde under the same conditions led to the formation of 3-aroyl-2H-chromen-2-ones, 2-(2-aroylacetoxy)phenyl-6-aryl-1,3-dioxin-4-ones, and 3-aroyl-2H-benzochromen-2-ones.