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Liu J, Wang Y, Qiu N, Liu X, Li Q, Li Y, Wu XY, Li C. Aromatic Ring-Fused Dipyrrins: Programmed [4 + 2]-Cycloaddition Pathway with Regio-selectivity upon Alkylamino-Substitution. J Org Chem 2023. [PMID: 38055052 DOI: 10.1021/acs.joc.3c02205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2023]
Abstract
Sulfolenodipyrrins are employed as building blocks to concisely and efficiently construct aromatic rings (e.g., naphthoquinone, anthraquinone, fullerenes, and phthalimide) from fused dipyrrins by programmed [4 + 2]-cycloaddition reactions. Notably, alkylamino-substitution at the α-position not only enhances the reactivity of sulfolenodipyrrins but also results in the regio-selectivity of the cycloaddition reactions. Theoretical calculations in terms of frontier orbitals of dienes, energy of dienes, steric hindrance, and aromaticity have been conducted to understand the reason in depth. Additionally, the fusion of aromatic groups enables bathochromic absorption with up to ∼130 nm for the monoadducts and to ∼200 nm for the bis-adducts. The phthalimide annulation dipyrrin displays red emission, while the other mono- or bis-adducts do not, owing to the presence of typical acceptors such as quinone analogs or fullerene.
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Affiliation(s)
- Jiayang Liu
- Key Laboratory for Advanced Materials, Shanghai Key Laboratory of Functional Materials Chemistry, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry & Molecular Engineering, East China University of Science & Technology, Shanghai 200237, China
| | - Yuanyuan Wang
- Key Laboratory for Advanced Materials, Shanghai Key Laboratory of Functional Materials Chemistry, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry & Molecular Engineering, East China University of Science & Technology, Shanghai 200237, China
| | - Ning Qiu
- Shanghai Starriver Bilingual School, No. 2588, Jindu Road, Shanghai 201108, China
| | - Xiujun Liu
- Key Laboratory for Advanced Materials, Shanghai Key Laboratory of Functional Materials Chemistry, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry & Molecular Engineering, East China University of Science & Technology, Shanghai 200237, China
| | - Qizhao Li
- Key Laboratory for Advanced Materials, Shanghai Key Laboratory of Functional Materials Chemistry, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry & Molecular Engineering, East China University of Science & Technology, Shanghai 200237, China
| | - Yuxin Li
- Key Laboratory of Function Inorganic Material Chemistry (MOE), School of Chemistry and Material Science, Heilongjiang University, Harbin 150080, China
| | - Xin-Yan Wu
- Key Laboratory for Advanced Materials, Shanghai Key Laboratory of Functional Materials Chemistry, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry & Molecular Engineering, East China University of Science & Technology, Shanghai 200237, China
| | - Chengjie Li
- Key Laboratory for Advanced Materials, Shanghai Key Laboratory of Functional Materials Chemistry, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry & Molecular Engineering, East China University of Science & Technology, Shanghai 200237, China
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