Volume 126, Issue 43 pp. 11763-11766
Zuschrift

Nickel(II)-Catalyzed Asymmetric Propargyl and Allyl Claisen Rearrangements to Allenyl- and Allyl-Substituted β-Ketoesters

Yangbin Liu

Yangbin Liu

Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064 (China)

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Haipeng Hu

Haipeng Hu

Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064 (China)

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Haifeng Zheng

Haifeng Zheng

Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064 (China)

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Yong Xia

Yong Xia

Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064 (China)

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Prof. Dr. Xiaohua Liu

Prof. Dr. Xiaohua Liu

Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064 (China)

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Dr. Lili Lin

Dr. Lili Lin

Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064 (China)

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Prof. Dr. Xiaoming Feng

Corresponding Author

Prof. Dr. Xiaoming Feng

Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064 (China)

State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000 (China)

Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064 (China)Search for more papers by this author
First published: 11 September 2014
Citations: 24

We thank the National Basic Research Program of China (973 Program: 2011CB808600), the National Natural Science Foundation of China (21290182, 21321061 and 21172151), and the Ministry of Education (20110181130014) for financial support.

Abstract

Highly efficient catalytic asymmetric Claisen rearrangements of O-propargyl β-ketoesters and O-allyl β-ketoesters have been accomplished under mild reaction conditions. In the presence of the chiral N,N′-dioxide/NiII complex, a wide range of allenyl/allyl-substituted all-carbon quaternary β-ketoesters was obtained in generally good yield (up to 99 %) and high diastereoselectivity (up to 99:1 d.r.) with excellent enantioselectivity (up to 99 % ee).

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