Asymmetric 1,4-Addition of Oxazolones to
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José Alemán; Andrea Milelli; Silvia Cabrera; Efraim Reyes; Karl Anker Jørgensen
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Article
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2008
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John Wiley and Sons
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English
⚖ 322 KB
👁 1 views
## Abstract An easy and simple synthetic approach to optically active α,α‐quaternary α‐amino acids using asymmetric organocatalysis is presented. The addition of oxazolones to nitroalkenes catalyzed by thiourea cinchona derivatives provides the corresponding α,α‐quaternary α‐amino acid derivatives