An Efficient Route to Dipyrrinones: Synthesis of Xanthobilirubic Acid Methyl Ester
作者:David P. Shrout、David A. Lightner
DOI:10.1055/s-1990-27094
日期:——
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.
结构上既有趣又复杂的联吡咯酮,例如甲酯黄胆基乳酸(9),可从简单且廉价的起始材料如乙酰乙酸乙酯、2,4-戊二酮(1)和丙烯酸乙酯通过8步反应大规模合成,每步平均产率为80%,总产率为17%。