Synthetic communications

Regioselective Synthesis of 4-Acetyl-and 5-Acetyl-3-methylisoxazole: Their Conversion into Silyl-and Methyl Enol Ethers

S Chimichi, B Cosimelli

文献索引：Chimichi; Cosimelli Synthetic Communications, 1992 , vol. 22, # 20 p. 2909 - 2920

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被引用次数: 7

摘要

Abstract Acetonitrile oxide reacts regioselectively with 3-buten-2-one and (E)-4-methoxy-3- buten-2-one to give 5-acetyl-2 and 4-acetyl-3-methylisoxazole 3, respectively. Treatment of ketones 2 and 3 with trimethylsilyl trifluoromethanesulfonate gave the silyl enol ethers 4 and