Palladium-Catalyzed Asymmetric Conjugate Addition of Arylboronic Acids to Five-, Six-, and Seven-Membered β-Substituted Cyclic Enones: Enantioselective Construction of All-Carbon Quaternary Stereocenters

Kotaro Kikushima; Jeffrey C. Holder; Michele Gatti; Brian M. Stoltz

doi:10.1021/ja200664x

Palladium-Catalyzed Asymmetric Conjugate Addition of Arylboronic Acids to Five-, Six-, and Seven-Membered β-Substituted Cyclic Enones: Enantioselective Construction of All-Carbon Quaternary Stereocenters

Kotaro Kikushima, Jeffrey C. Holder, Michele Gatti, Brian M. Stoltz

Research output: Contribution to journal › Article › peer-review

190 Scopus citations

Abstract

The first enantioselective Pd-catalyzed construction of all-carbon quaternary stereocenters via 1,4-addition of arylboronic acids to β-substituted cyclic enones is reported. Reaction of a wide range of arylboronic acids and cyclic enones using a catalyst prepared from Pd(OCOCF(3))(2) and a chiral pyridinooxazoline ligand yields enantioenriched products bearing benzylic stereocenters. Notably, this transformation is tolerant to air and moisture, providing a practical and operationally simple method of synthesizing enantioenriched all-carbon quaternary stereocenters.

Original language	English (US)
Pages (from-to)	6902-6905
Number of pages	4
Journal	Journal of the American Chemical Society
Volume	133
Issue number	18
DOIs	https://doi.org/10.1021/ja200664x
State	Published - May 11 2011
Externally published	Yes

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): KUS-11-006-02
Acknowledgements: This publication is based on work supported by Award No. KUS-11-006-02, made by King Abdullah University of Science and Technology (KAUST). The authors wish to thank NIH-NIGMS (R01GM080269-01), Amgen, Abbott, Boehringer Ingelheim, and Caltech for financial support. K.K. acknowledges the Japan Society for the Promotion of Science for a postdoctoral fellowship. M.G. is grateful to the Swiss National Science Foundation for financial support through a postdoctoral fellowship.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.

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title = "Palladium-Catalyzed Asymmetric Conjugate Addition of Arylboronic Acids to Five-, Six-, and Seven-Membered β-Substituted Cyclic Enones: Enantioselective Construction of All-Carbon Quaternary Stereocenters",

abstract = "The first enantioselective Pd-catalyzed construction of all-carbon quaternary stereocenters via 1,4-addition of arylboronic acids to β-substituted cyclic enones is reported. Reaction of a wide range of arylboronic acids and cyclic enones using a catalyst prepared from Pd(OCOCF(3))(2) and a chiral pyridinooxazoline ligand yields enantioenriched products bearing benzylic stereocenters. Notably, this transformation is tolerant to air and moisture, providing a practical and operationally simple method of synthesizing enantioenriched all-carbon quaternary stereocenters.",

author = "Kotaro Kikushima and Holder, {Jeffrey C.} and Michele Gatti and Stoltz, {Brian M.}",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledged KAUST grant number(s): KUS-11-006-02 Acknowledgements: This publication is based on work supported by Award No. KUS-11-006-02, made by King Abdullah University of Science and Technology (KAUST). The authors wish to thank NIH-NIGMS (R01GM080269-01), Amgen, Abbott, Boehringer Ingelheim, and Caltech for financial support. K.K. acknowledges the Japan Society for the Promotion of Science for a postdoctoral fellowship. M.G. is grateful to the Swiss National Science Foundation for financial support through a postdoctoral fellowship. This publication acknowledges KAUST support, but has no KAUST affiliated authors.",

year = "2011",

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Kikushima, K, Holder, JC, Gatti, M & Stoltz, BM 2011, 'Palladium-Catalyzed Asymmetric Conjugate Addition of Arylboronic Acids to Five-, Six-, and Seven-Membered β-Substituted Cyclic Enones: Enantioselective Construction of All-Carbon Quaternary Stereocenters', Journal of the American Chemical Society, vol. 133, no. 18, pp. 6902-6905. https://doi.org/10.1021/ja200664x

Palladium-Catalyzed Asymmetric Conjugate Addition of Arylboronic Acids to Five-, Six-, and Seven-Membered β-Substituted Cyclic Enones: Enantioselective Construction of All-Carbon Quaternary Stereocenters. / Kikushima, Kotaro; Holder, Jeffrey C.; Gatti, Michele et al.
In: Journal of the American Chemical Society, Vol. 133, No. 18, 11.05.2011, p. 6902-6905.

Research output: Contribution to journal › Article › peer-review

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Palladium-Catalyzed Asymmetric Conjugate Addition of Arylboronic Acids to Five-, Six-, and Seven-Membered β-Substituted Cyclic Enones: Enantioselective Construction of All-Carbon Quaternary Stereocenters

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