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187222-12-4

4H-Pyran-2-carboxylic acid, 3,5-dimethyl-4-oxo- synthesis

1synthesis methods
1-Penten-3-one, 1-hydroxy-2-methyl-

50421-81-3
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4H-Pyran-2-carboxylic acid, 3,5-dimethyl-4-oxo-

187222-12-4
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-

Yield:-

Steps:

Multi-step reaction with 2 steps
1: 84 percent / anh. potassium carbonate / acetone / 34 h / Heating
2: 20 percent / sodium ethoxide / ethanol / 0.5 h / Heating

References:

Chou, Shan-Yen;Chen, Shyh-Fong [Heterocycles,1997,vol. 45,# 1,p. 77 - 85]