Volume 59, Issue 40 pp. 17565-17571
Research Article

Dealkenylative Alkenylation: Formal σ-Bond Metathesis of Olefins

Dr. Manisha Swain

Dr. Manisha Swain

Department of Chemistry and Biochemistry, University of California—Los Angeles, Los Angeles, CA, 90095-1569 USA

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Gusein Sadykhov

Gusein Sadykhov

Department of Chemistry and Biochemistry, University of California—Los Angeles, Los Angeles, CA, 90095-1569 USA

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Ruoxi Wang

Ruoxi Wang

Department of Chemistry and Biochemistry, University of California—Los Angeles, Los Angeles, CA, 90095-1569 USA

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Prof. Dr. Ohyun Kwon

Corresponding Author

Prof. Dr. Ohyun Kwon

Department of Chemistry and Biochemistry, University of California—Los Angeles, Los Angeles, CA, 90095-1569 USA

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First published: 11 July 2020
Citations: 32

Graphical Abstract

The dealkenylative alkenylation of alkene C(sp3)−C(sp2) bonds has been an unexplored area for C−C bond formation. Reported herein are β-alkylated styrene derivatives synthesized through the reactions of readily accessible feedstock olefins with β-nitrostyrenes by ozone/FeII-mediated radical substitutions. The strategy was applied to the syntheses of the natural product iso-moracin and the drug (E)-metanicotine.

Abstract

The dealkenylative alkenylation of alkene C(sp3)−C(sp2) bonds has been an unexplored area for C−C bond formation. Herein 64 examples of β-alkylated styrene derivatives, synthesized through the reactions of readily accessible feedstock olefins with β-nitrostyrenes by ozone/FeII-mediated radical substitutions, are reported. These reactions proceed with good efficiencies and high stereoselectivities under mild reaction conditions and tolerate an array of functional groups. Also demonstrated is the applicability of the strategy through several synthetic transformations of the products, as well as the syntheses of the natural product iso-moracin and the drug (E)-metanicotine.

Conflict of interest

The authors declare no conflict of interest.

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