Stereospecific Intramolecular Reductive Cross-Electrophile Coupling Reactions for Cyclopropane Synthesis

Emily J. Tollefson, Lucas W. Erickson, Elizabeth R. Jarvo

Research output: Contribution to journalArticlepeer-review

38 Scopus citations

Abstract

The stereospecific reductive cross-electrophile coupling reaction of 2-aryl-4-chlorotetrahydropyrans to afford disubstituted cyclopropanes is reported. This ring contraction presents surprises with respect to the stereochemical outcome of reaction of the alkyl halide moiety. While cross-coupling and reductive cross-electrophile coupling reactions of alkyl halides are typically stereoablative, using a chiral catalyst to set the stereocenter, this transformation proceeds with high stereochemical fidelity at the alkyl halide and ether bearing stereogenic centers. This approach provides straightforward access to highly substituted cyclopropanes in two steps from commercially available aldehydes.

Original languageEnglish (US)
Pages (from-to)9760-9763
Number of pages4
JournalJournal of the American Chemical Society
Volume137
Issue number31
DOIs
StatePublished - Aug 12 2015

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