Remote asymmetric induction via a chiral acetylene equivalent
Asymmetric transformations have, to date, typically relied on proximal steric biasing to favor the formation of one enantiomer over the other during the enantiodetermining step. We report the use of an enantioenriched oxabicycle that serves both as a chiral auxiliary and an acetylene surrogate follo...
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| Hauptverfasser: | , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
August 1, 2025
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| In: |
ACS catalysis
Year: 2025, Jahrgang: 15, Heft: 16, Pages: 14239-14251 |
| ISSN: | 2155-5435 |
| DOI: | 10.1021/acscatal.5c03724 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1021/acscatal.5c03724 Verlag, lizenzpflichtig, Volltext: https://pubs.acs.org/doi/10.1021/acscatal.5c03724 
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| Verfasserangaben: | Xavier Abel-Snape, Clara Jans, Bijan Mirabi, Moritz K.T. Klischan, Julian J. Melder, Atang Peloewetse, Gregory J. Hughes, and Mark Lautens |
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| 245 | 1 | 0 | |a Remote asymmetric induction via a chiral acetylene equivalent |c Xavier Abel-Snape, Clara Jans, Bijan Mirabi, Moritz K.T. Klischan, Julian J. Melder, Atang Peloewetse, Gregory J. Hughes, and Mark Lautens |
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| 520 | |a Asymmetric transformations have, to date, typically relied on proximal steric biasing to favor the formation of one enantiomer over the other during the enantiodetermining step. We report the use of an enantioenriched oxabicycle that serves both as a chiral auxiliary and an acetylene surrogate following two selective palladium-catalyzed carbopalladations and a postcatalytic retro-Diels-Alder step. Differentiating functional groups, that are remote from the reactive alkene, direct the reaction with an ortho-iodostyrene and a terminating reagent in a domino fashion, providing enantioenriched indenes. The phosphine ligand has a dramatic influence on the overall process, as alkyl- and arylphosphines lead to opposite major enantiomers of the final indene product. | ||
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