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Title: Activation of olefins via asymmetric Bronsted acid catalysis

The activation of olefins for asymmetric chemical synthesis traditionally relies on transition metal catalysts. In contrast, biological enzymes with Bronsted acidic sites of appropriate strength can protonate olefins and thereby generate carbocations that ultimately react to form natural products. Although chemists have recently designed chiral Bronsted acid catalysts to activate imines and carbonyl compounds, mimicking these enzymes to protonate simple olefins that then engage in asymmetric catalytic reactions has remained a substantial synthetic challenge. Here, we show that a class of confined and strong chiral Bronsted acids enables the catalytic asymmetric intramolecular hydroalkoxylation of unbiased olefins. In conclusion, the methodology gives rapid access to biologically active 1,1-disubstituted tetrahydrofurans, including (–)-Boivinianin A.
Authors:
ORCiD logo [1] ; ORCiD logo [1] ;  [1] ; ORCiD logo [1] ;  [1] ;  [1] ; ORCiD logo [2] ; ORCiD logo [1] ; ORCiD logo [1]
  1. Max-Planck-Institut fur Kohlenforschung, Mulheim an der Ruhr (Germany)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Max Planck Institute for Chemical Energy Conversion, Mulheim an der Ruhr (Germany)
Publication Date:
Grant/Contract Number:
AC05-00OR22725
Type:
Accepted Manuscript
Journal Name:
Science
Additional Journal Information:
Journal Volume: 359; Journal Issue: 6383; Journal ID: ISSN 0036-8075
Publisher:
AAAS
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR) (SC-21)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
OSTI Identifier:
1454404

Tsuji, Nobuya, Kennemur, Jennifer L., Buyck, Thomas, Lee, Sunggi, Prevost, Sebastien, Kaib, Philip S. J., Bykov, Dmytro, Fares, Christophe, and List, Benjamin. Activation of olefins via asymmetric Bronsted acid catalysis. United States: N. p., Web. doi:10.1126/science.aaq0445.
Tsuji, Nobuya, Kennemur, Jennifer L., Buyck, Thomas, Lee, Sunggi, Prevost, Sebastien, Kaib, Philip S. J., Bykov, Dmytro, Fares, Christophe, & List, Benjamin. Activation of olefins via asymmetric Bronsted acid catalysis. United States. doi:10.1126/science.aaq0445.
Tsuji, Nobuya, Kennemur, Jennifer L., Buyck, Thomas, Lee, Sunggi, Prevost, Sebastien, Kaib, Philip S. J., Bykov, Dmytro, Fares, Christophe, and List, Benjamin. 2018. "Activation of olefins via asymmetric Bronsted acid catalysis". United States. doi:10.1126/science.aaq0445.
@article{osti_1454404,
title = {Activation of olefins via asymmetric Bronsted acid catalysis},
author = {Tsuji, Nobuya and Kennemur, Jennifer L. and Buyck, Thomas and Lee, Sunggi and Prevost, Sebastien and Kaib, Philip S. J. and Bykov, Dmytro and Fares, Christophe and List, Benjamin},
abstractNote = {The activation of olefins for asymmetric chemical synthesis traditionally relies on transition metal catalysts. In contrast, biological enzymes with Bronsted acidic sites of appropriate strength can protonate olefins and thereby generate carbocations that ultimately react to form natural products. Although chemists have recently designed chiral Bronsted acid catalysts to activate imines and carbonyl compounds, mimicking these enzymes to protonate simple olefins that then engage in asymmetric catalytic reactions has remained a substantial synthetic challenge. Here, we show that a class of confined and strong chiral Bronsted acids enables the catalytic asymmetric intramolecular hydroalkoxylation of unbiased olefins. In conclusion, the methodology gives rapid access to biologically active 1,1-disubstituted tetrahydrofurans, including (–)-Boivinianin A.},
doi = {10.1126/science.aaq0445},
journal = {Science},
number = 6383,
volume = 359,
place = {United States},
year = {2018},
month = {3}
}

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