Volume 135, Issue 21 e202301592
Forschungsartikel

Dearomatization-Rearomatization Reaction of Metal-Polarized Aza-ortho-Quinone Methides

Bao-Cheng Wang

Bao-Cheng Wang

CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, 430079 Wuhan, Hubei, P. R. China

These authors contributed equally to this work.

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Dr. Li Rao

Dr. Li Rao

CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, 430079 Wuhan, Hubei, P. R. China

These authors contributed equally to this work.

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Kai-Xin Fang

Kai-Xin Fang

State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Biology, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, P. R. China

These authors contributed equally to this work.

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Bao-Le Qu

Bao-Le Qu

CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, 430079 Wuhan, Hubei, P. R. China

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Fen-Ya Xiong

Fen-Ya Xiong

CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, 430079 Wuhan, Hubei, P. R. China

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Ying Feng

Ying Feng

State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Biology, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, P. R. China

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Prof. Ying Tan

Corresponding Author

Prof. Ying Tan

State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Biology, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, P. R. China

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Prof. Liang-Qiu Lu

Corresponding Author

Prof. Liang-Qiu Lu

CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, 430079 Wuhan, Hubei, P. R. China

State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, 730000 Lanzhou, P. R. China

School of Chemistry and Chemical Engineering, Henan Normal University, 453007 Xinxiang, Henan, China

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Prof. Wen-Jing Xiao

Prof. Wen-Jing Xiao

CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, 430079 Wuhan, Hubei, P. R. China

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First published: 17 March 2023

Abstract

Metal-polarized aza-ortho-quinone methides (aza-o-QMs) are a unique and efficient handle for azaheterocycle synthesis. Despite great achievements, the potential of these reactive intermediates has not yet been fully exploited, especially the new reaction modes. Herein, we disclosed an unprecedented dearomatization process of metal-polarized aza-o-QMs, affording transient dearomatized spiroaziridine intermediates. Based on this serendipity, we accomplished three sequential dearomatization-rearomatization reactions of benzimidazolines with aza-sulfur ylides, enabling the divergent synthesis of bis-nitrogen heterocycles with high efficiency and flexibility. Moreover, experimental and theoretical studies were performed to explain the proposed mechanisms and observed selectivity. Further cellular evaluation of the dibenzodiazepine products identified a hit compound for new antitumor drugs.

Conflict of interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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