Volume 135, Issue 40 e202310320
Forschungsartikel

Asymmetric Allylic Substitution-Isomerization for the Modular Synthesis of Axially Chiral N-Vinylquinazolinones

Jia-Yu Zou

Jia-Yu Zou

School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094 China

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Yu-Ying Yang

Yu-Ying Yang

School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094 China

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Jun Gu

Jun Gu

School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094 China

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Fei Liu

Fei Liu

School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094 China

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Dr. Zhiwen Ye

Dr. Zhiwen Ye

School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094 China

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Dr. Wenbin Yi

Dr. Wenbin Yi

School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094 China

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Prof. Ying He

Corresponding Author

Prof. Ying He

School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094 China

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Dedicated to Nanjing University of Science and Technology on the occasion of the 70th anniversary
First published: 15 August 2023
Citations: 2

Abstract

Axially chiral N-substituted quinazolinones are important bioactive molecules, which are presented in many synthetic drugs. However, most strategies toward their atroposelective synthesis are mainly limited to the axially chiral arylquinazolinone frameworks. The development of modular synthetic methods to access diverse quinazolinone-based atropisomers remains scarce and challenging. Herein, we report the regio- and atroposelective synthesis of axially chiral N-vinylquinazolinones via the strategy of asymmetric allylic substitution-isomerization. The catalysis system utilized both asymmetric transition-metal catalysis and organocatalysis to efficiently afford trisubstituted and tetrasubstituted N-vinylquinazolinone atropisomers, respectively. With the meticulous design of β-substituted allylic substrates, both Z- and E-tetrasubstituted axially chiral N-vinylquinazolinones were obtained in good yields and high enantioselectivities.

Conflict of interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available in the supplementary material of this article.

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