A new α-ionone, (Z)-4-hydroxy-3,5,5-trimethyl-4-(3′-oxobut-1′-enyl)cyclohex-2-enone (1) was isolated from the flower of Michelia champaca L. The structure of the new α-ionone was elucidated by chemical and physical evidence.

中文翻译：

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一种来自香槟含笑的新α-紫罗兰酮

从含笑花中分离得到一种新的α-紫罗兰酮, (Z)-4-hydroxy-3,5,5-trimethyl-4-(3'-oxobut-1'-enyl)cyclohex-2-enone (1) champaca L. 通过化学和物理证据阐明了新的 α-紫罗兰酮的结构。