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7958368 
Journal Article 
Cosolvent effect on the tautomerism of ethyl acetoacetate in supercritical CO2 
Li, HP; Zhang, HF; Liu, J; Han, BX 
2001 
1 
Chinese Chemical Letters
ISSN: 1001-8417
EISSN: 1878-5964 
12 
4 
351-352 
English 
WOS:000168213100023 
The effect of cosolvent cyclohexane, chloroform, and acetonitrile on the keto-enol tautomeric equilibrium of ethyl acetoacetate in supercritical CO2 was studied by UV-Vis spectroscopy over the pressure range from 76 to 110 bar at 308.15 K. It was found that the equilibrium constant decreases with increasing polarity of the cosolvents. 
supercritical CO2; cosolvent effect; ethyl acetoacetate; tautomerism