Two Cationic Antiaromatic Free-Base Corroles
The synthesis of free-base antiaromatic porphyrinoids remains a challenging task. Herein we report the first preparation of two cationic free-base antiaromatic corroles, <b>BC(H</b><sub><b>2</b></sub><b>)</b><sup><b>+</b></sup> (containing two NH moieties, slightly saddle-shaped) and <b>BC(H</b><sub><b>4</b></sub><b>)</b><sup><b>3+</b></sup> (containing four NH moieties, severely distorted saddle-shaped), utilizing a strategy of β-annulated benzene rings to suppress side reactions. The antiaromatic character of <b>BC(H</b><sub><b>2</b></sub><b>)</b><sup><b>+</b></sup> and <b>BC(H</b><sub><b>4</b></sub><b>)</b><sup><b>3+</b></sup> is robustly supported by crystallographic analysis, spectroscopic evidence, and theoretical calculations.
Authors
- Fan Wu (ORCID: https://orcid.org/0000-0002-2313-5974)
- Chulin Qu (ORCID: https://orcid.org/0009-0003-8180-6929)
- Hidemitsu Uno (ORCID: https://orcid.org/0000-0003-3597-9434)
- Zhen Shen (ORCID: https://orcid.org/0000-0003-2464-1278)
- Pengfei Li (ORCID: https://orcid.org/0000-0001-7945-4993)
Institutions
- Nanjing Normal University (CN)
- Collaborative Innovation Center of Advanced Microstructures (CN)
- Ehime University (JP)
- Graduate School USA (US)
- Nanjing University (CN)
Publication Details
- Journal
- Organic Letters
- Published
- 2025-09-19
- DOI
- https://doi.org/10.1021/acs.orglett.5c03111
- Primary Topic
- Porphyrin and Phthalocyanine Chemistry
- Type
- article
- Field-Weighted Citation Impact
- 0.00