An Efficient Route to Dipyrrinones: Synthesis of Xanthobilirubic Acid Methyl Ester
- 1 January 1990
- journal article
- research article
- Published by Georg Thieme Verlag KG in Synthesis
- Vol. 1990 (11) , 1062-1065
- https://doi.org/10.1055/s-1990-27094
Abstract
Structually interesting and complicated dipyrrinones, such as xanthobilirubic acid methyl ester (9), can be synthesized on a large scale from simple, inexpensive starting materials like ethyl acetoacetate, 2,4-pentanedione (1) and ethyl acrylate in 8 steps with an average yield of 80% at each step and an overall 17% yield.Keywords
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