Critical Review
Recent Natural Product Total Syntheses Involving Cycloadditions of Allenes
Chen-Chen Gu,
Xiong-En Long,
Xiuping Chen,
Junyang Liu,
Chuang-Chuang Li,
Chen-Chen Gu
Department of Chemistry, Guangming Advanced Research Institute, Southern University of Science and Technology, Shenzhen, Guangdong, 518055 China
Search for more papers by this authorXiong-En Long
School of Pharmacy and Food Engineering, Wuyi University, Jiangmen, Guangdong, 529020 China
Search for more papers by this authorXiuping Chen
State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
Search for more papers by this authorCorresponding Author
Junyang Liu
School of Pharmacy and Food Engineering, Wuyi University, Jiangmen, Guangdong, 529020 China
E-mail: [email protected]; [email protected]Search for more papers by this authorCorresponding Author
Chuang-Chuang Li
Department of Chemistry, Guangming Advanced Research Institute, Southern University of Science and Technology, Shenzhen, Guangdong, 518055 China
E-mail: [email protected]; [email protected]Search for more papers by this authorChen-Chen Gu,
Xiong-En Long,
Xiuping Chen,
Junyang Liu,
Chuang-Chuang Li,
Chen-Chen Gu
Department of Chemistry, Guangming Advanced Research Institute, Southern University of Science and Technology, Shenzhen, Guangdong, 518055 China
Search for more papers by this authorXiong-En Long
School of Pharmacy and Food Engineering, Wuyi University, Jiangmen, Guangdong, 529020 China
Search for more papers by this authorXiuping Chen
State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
Search for more papers by this authorCorresponding Author
Junyang Liu
School of Pharmacy and Food Engineering, Wuyi University, Jiangmen, Guangdong, 529020 China
E-mail: [email protected]; [email protected]Search for more papers by this authorCorresponding Author
Chuang-Chuang Li
Department of Chemistry, Guangming Advanced Research Institute, Southern University of Science and Technology, Shenzhen, Guangdong, 518055 China
E-mail: [email protected]; [email protected]Search for more papers by this authorAbstract
Comprehensive Summary
Allenes, characterized by their cumulated carbon–carbon double bonds, have emerged as indispensable synthons in the construction of complex natural products. Their unique reactivity and stereochemical properties render allenes a powerful tool for the efficient and streamlined total synthesis of structurally intricate natural products. This review comprehensively summarizes the total syntheses of complex natural products involving allene cycloaddition reactions reported over the past decade (2014—2024). Among the nearly 20 total syntheses reviewed, the [2+1], [2+2], [3+2], [4+2], [4+3], [5+1] and [2+2+1] cycloaddition reactions of allenes are the most important transformations to construct the key skeleton. This is because of their ability to form multiple bonds in a single step with high atom economy, stereoselectivity, and regioselectivity, often under mild conditions. The strategic application of these reactions in forming key carbon–carbon bonds and controlling stereochemistry makes them practical for the efficient assembly of complex molecular frameworks. With the ongoing exploration of methods for allene generation, particularly the enantioselective approaches, and the continued discovery of novel cyclization reactions of allenes, allene chemistry will maintain its crucial and indispensable role in the total synthesis of natural products.
Key Scientists
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