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Thieme Gruppe, Synthesis: Journal of Synthetic Organic Chemistry, 09(56), p. 1401-1406, 2024

DOI: 10.1055/a-2249-2326

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Rapid Access to cis-1,3-Dialkylindanes: Asymmetric Formal Syntheses of epi-Mutisianthol and epi-Jungianol

Distributing this paper is prohibited by the publisher
Distributing this paper is prohibited by the publisher

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Abstract

AbstractConcise and strategically unique asymmetric formal syntheses of epi-mutisianthol and epi-jungianol are presented. A novel disconnection approach is introduced to complement previous intramolecular cyclopentannulation strategies. Noteworthy features include: (a) control of the stereogenic benzylic carbon center through 1,3-chirality transfer from chiral indenols via the Johnson–Claisen rearrangement, which yields advanced indene-containing γ,δ-unsaturated esters, and (b) the diastereoselective construction of the cis-1,3-dialkylindane backbone via catalytic hydrogenation of the resulting indene. This approach presents a remarkable method for synthesizing structurally intriguing indane motifs.