Volume 59, Issue 52 pp. 23649-23658
Research Article

Oxygen- and Nitrogen-Embedded Zigzag Hydrocarbon Belts

Mei-Ling Tan

Mei-Ling Tan

Key Laboratory of Green Chemistry and Technology (MOE), College of Chemistry, Sichuan University, Chengdu, 610064 China

Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (MOE), Department of Chemistry, Tsinghua University, Beijing, 100084 China

These authors contributed equally to this work.

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Dr. Qing-Hui Guo

Dr. Qing-Hui Guo

Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (MOE), Department of Chemistry, Tsinghua University, Beijing, 100084 China

These authors contributed equally to this work.

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Dr. Xue-Yuan Wang

Dr. Xue-Yuan Wang

Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (MOE), Department of Chemistry, Tsinghua University, Beijing, 100084 China

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Tan-Hao Shi

Tan-Hao Shi

Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (MOE), Department of Chemistry, Tsinghua University, Beijing, 100084 China

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Dr. Qian Zhang

Dr. Qian Zhang

Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (MOE), Department of Chemistry, Tsinghua University, Beijing, 100084 China

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Sheng-Kai Hou

Sheng-Kai Hou

Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (MOE), Department of Chemistry, Tsinghua University, Beijing, 100084 China

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Prof. Dr. Shuo Tong

Prof. Dr. Shuo Tong

Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (MOE), Department of Chemistry, Tsinghua University, Beijing, 100084 China

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Prof. Dr. Jingsong You

Prof. Dr. Jingsong You

Key Laboratory of Green Chemistry and Technology (MOE), College of Chemistry, Sichuan University, Chengdu, 610064 China

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Prof. Dr. Mei-Xiang Wang

Corresponding Author

Prof. Dr. Mei-Xiang Wang

Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (MOE), Department of Chemistry, Tsinghua University, Beijing, 100084 China

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First published: 12 October 2020
Citations: 44

Graphical Abstract

Bridging all fjords of resorcin[4]arene derivatives by means of a macrocyclic-conformation-facilitated intramolecular nucleophilic substitution reaction and palladium-catalyzed intermolecular C−N cross-coupling led to the production of unprecedented oxygen- and nitrogen-doped zigzag hydrocarbon belts (see structure). The heteroatom-embedded belts exhibited markedly different photophysical and redox properties to those of their hydrocarbon analogues.

Abstract

Despite the aesthetically appealing structures and tantalizing physical and chemical properties, zigzag hydrocarbon belts and their heteroatom-embedded analogues remain challenging synthetic targets. We report herein the synthesis of diverse O/N-doped zigzag hydrocarbon belts based on selective bridging of the fjords of resorcin[4]arene derivatives through intramolecular SNAr and palladium-catalyzed intermolecular C−N bond formation reactions. Preorganized conformations of mono-macrocyclic, half-belt and quasi-belt compounds were revealed to facilitate cyclization reactions to construct heteroatom-linked octahydrobelt[8]arenes. The acquired products had strained square-prism-shaped belt structures in which all six-membered heterocyclic rings adopted an unusual boat conformation with equatorially configured alkyl groups. The unprecedented heteroatom-bearing belts also exhibited different photophysical and redox properties to those of octahydrobelt[8]arene analogues.

Conflict of interest

The authors declare no conflict of interest.

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