6460-83-9

Upstream product

• 186581-53-3 diazomethane 
• 1600-39-1 2-hydroxy-3-phenylcyclopropenone 
• 71-43-2 benzene 

Downstream Products

• 6460-85-1 β-Methoxy-α-phenylacrylsaeure 
• 6460-86-2 Methyl β-Methoxy-α-phenylacrylat 

Relevant academic research and scientific papers

Flash photolytic generation and study of ynolate ions and the corresponding ketenes in aqueous solution

Flash photolysis of a series of arylhydroxycyclopropenones (aryl = phenyl, mesityl, 4-methoxyphenyl, 2,4,6-trimethoxyphenyl, and 1-naphthyl) in aqueous solution was found to give arylacetic acids as final products through two successively formed, short-lived reaction intermediates. Rate profiles, the form of acid-base catalysis, and solvent isotope effects identified the first of these intermediates as arylynolate ions, ArC≡CO-, and the second as arylketenes, ArCH=C=O; the identity of the ketenes was also confirmed by independent generation through photo-Wolff reaction of corresponding aryl diazo compounds. The kinetic behavior of the arylynolate ions shows that the corresponding arylynols, ArC≡COH, are remarkably strong acids, with pKa 3.