Enantioselective Biomimetic Total Syntheses of Katsumadain and Katsumadain C

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• 作者：Pengtao Zhang ; Yongguang Wang ; Ruiyang Bao ; Tuoping Luo ; Zhen Yang ; Yefeng Tang
• 刊名：Organic Letters
• 出版年：2012
• 出版时间：January 6, 2012
• 年：2012
• 卷：14
• 期：1
• 页码：162-165
• 全文大小：770K
• 年卷期：v.14,no.1(January 6, 2012)
• ISSN：1523-7052

文摘

Enantioselective total syntheses of katsumadain and katsumadain C were achieved concisely through a biomimetic approach. Assembly of styryl-2-pyranone (3) and monoterpene 6 via acid-promoted regio- and stereoselective C鈥揅 bond formation afforded katsumadain (2), which underwent the photoinduced [2 + 2] dimerization in a head-to-tail mode to furnish katsumadain C (1).