Synthesis 2013; 45(12): 1612-1623
DOI: 10.1055/s-0033-1338839
feature article
© Georg Thieme Verlag Stuttgart · New York

Asymmetric Domino Double Michael Addition of Nitroolefins and Aldehyde Esters with trans-Perhydroindolic Acid as an Organocatalyst

Qianjin An
a   School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. of China
,
Jiefeng Shen
a   School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. of China
,
Nicholas Butt
b   School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. of China   Fax: +86(21)54743265   eMail: wanbin@sjtu.edu.cn
,
Delong Liu*
a   School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. of China
,
Yangang Liu
a   School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. of China
,
Wanbin Zhang*
a   School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. of China
b   School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. of China   Fax: +86(21)54743265   eMail: wanbin@sjtu.edu.cn
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Received: 07. März 2013

Accepted after revision: 30. April 2013

Publikationsdatum:
29. Mai 2013 (online)


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Abstract

An asymmetric domino double Michael addition reaction was developed using accessible substrates to construct biologically important and synthetically challenging cyclopentanes with four contiguous stereocenters. The proline-like molecules, trans-perhydroindolic acids, proved to be efficient organocatalysts in this reaction. Under the optimal reaction conditions, the asymmetric domino double Michael addition provided good yields (up to 98%), and excellent diastereoselectivities (up to 100% dr) and enantioselectivities (up to 99% ee). The obtained polysubstituted aliphatic cyclopentanes not only exist in biologically active natural products and medicines, but can also be converted into many other useful scaffolds via a simple transformation, such as cis-fused bicyclic lactams. Our current methodology is suitable for the synthesis of polysubstituted aliphatic cyclopentanes with contiguous multiple stereocenters.

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