Open Access
CC BY-NC-ND 4.0 · SynOpen 2022; 06(01): 67-74
DOI: 10.1055/a-1761-4495
paper

Amino Imidate Catalyzed Asymmetric Michael Reactions of Ketones and Nitroalkenes

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We thank The Wild Fund, University of York for funding (B.S.).


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Abstract

The efficiency of an amino imidate organocatalyst was evaluated in the Michael reaction of ketones with nitroalkenes. tert-Butyl­ l-proline imidate was found to be a syn-selective catalyst, generating products with moderate to good enantioselectivities of up to 84% ee. The best substrates were found to be cyclic ketones and β-nitrostyrenes. The catalytic efficiency and enantioselectivity were enhanced by the addition of 10 mol% of benzoic acid.

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Publication History

Received: 27 January 2022

Accepted after revision: 03 February 2022

Accepted Manuscript online:
04 February 2022

Article published online:
24 February 2022

© 2022. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/).

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