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Zhang C, Tang M, Sun B, Wang W, Yi Y, Zhang FL. A three-step sequence strategy for facile construction of donor–acceptor type molecules: triphenylamine-substituted acenes. CAN J CHEM 2020. [DOI: 10.1139/cjc-2019-0254] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
A new synthetic strategy was successfully developed for highly efficient construction of triphenylamine-substituted polycyclic aromatic hydrocarbons (PAHs), including anthracenes, tetraphenes, pentaphenes, and trinaphthylene. These molecules exhibited special structural characteristics, including donor–acceptor–donor (D–A–D) and donor–acceptor (D–A). Diverse aryl iodides coupled well with chlorinated 2-methyl benzaldehydes via a transient ligand-directed C–H bond arylation strategy to furnish various PAH precursors. The subsequent palladium-catalyzed Suzuki cross-couplings with 4-(diphenylamino)phenylboronic acid produced corresponding triphenylamine derivatives. Further, Brønsted acid promoted cycloaromatization generated the triphenylamine-substituted PAHs readily. The photophysical properties was investigated by UV–vis absorption and fluorescence emission spectroscope together with density functional theory (DFT) calculations.
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Affiliation(s)
- Chen Zhang
- Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, Hubei, P.R. China
| | - Ming Tang
- Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, Hubei, P.R. China
| | - Bing Sun
- Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, Hubei, P.R. China
| | - Weizhou Wang
- College of Chemistry and Chemical Engineering, and Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang 471934, P.R. China
| | - Ying Yi
- Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, Hubei, P.R. China
| | - Fang-Lin Zhang
- Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, Hubei, P.R. China
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Non-K Region Disubstituted Pyrenes (1,3-, 1,6- and 1,8-) by (Hetero)Aryl Groups-Review. Molecules 2019; 24:molecules24142551. [PMID: 31336967 PMCID: PMC6680588 DOI: 10.3390/molecules24142551] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 07/10/2019] [Accepted: 07/12/2019] [Indexed: 11/16/2022] Open
Abstract
Disubstituted pyrenes at the non-K region by the same or different (hetero)aryl groups have proven to be an increasingly interesting area of research for scientists over the last decade due to their optical and photophysical properties. However, in this area, there is no systematization of the structures and synthesis methods nor their limitations. In this review, all approaches to the synthesis of these compounds, starting from the commercially available pyrene are described. Herein, the ways of obtaining of disubstituted intermediates based on bromination and acylation reaction are presented. This is crucial in the determination of the possibility of further functionalization by using coupling, cycloaddition, condensation, etc. reactions. Moreover, the application of disubstituted pyrenes in the synthesis of 1,3,6,8-tetrasubstituted was also reviewed. This review describes the directions of research on chemistry of disubstituted pyrenes.
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Jung H, Kang S, Lee H, Yu YJ, Jeong JH, Song J, Jeon Y, Park J. High Efficiency and Long Lifetime of a Fluorescent Blue-Light Emitter Made of a Pyrene Core and Optimized Side Groups. ACS APPLIED MATERIALS & INTERFACES 2018; 10:30022-30028. [PMID: 30145879 DOI: 10.1021/acsami.8b09013] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
In this study, four emitters of blue light are synthesized by selecting pyrene with its high photoluminescence quantum yield (PLQY) as the core group and variants of the electron-donating diphenylamine (DPA) as side groups. The four compounds have different numbers, sizes, and substitution positions of alkyl groups on the DPA. Each of the four compounds when doped in OLED devices shows a high current efficiency (CE) of over 7 cd A-1 and a high external quantum efficiency (EQE) of over 7.5%. In addition, the compounds yield electroluminescence (EL) spectra showing peaks with narrow full width at half-maximum (fwhm) values of 37-40 nm and hence indicative of high color purity. Moreover, one compound N1,N6-bis(5-( tert-butyl)-2-methylphenyl)-N1,N6-bis(2,4-dimethylphenyl)pyrene-1,6-diamine (3Me-1Bu-TPPDA), shows a very high EQE of 9.25% and a very long lifetime with an LT95 of 471 h.
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Affiliation(s)
- Hyocheol Jung
- Department of Chemical Engineering , Kyung Hee University , 1732, Deogyeong-daero , Giheung-gu, Yongin-si , Gyeonggi-do 17104 , Republic of Korea
| | - Seokwoo Kang
- Department of Chemical Engineering , Kyung Hee University , 1732, Deogyeong-daero , Giheung-gu, Yongin-si , Gyeonggi-do 17104 , Republic of Korea
| | - Hayoon Lee
- Department of Chemical Engineering , Kyung Hee University , 1732, Deogyeong-daero , Giheung-gu, Yongin-si , Gyeonggi-do 17104 , Republic of Korea
| | - Young-Jun Yu
- LG Display, 1007, Deoguen-ri , Wollong-myeun, Paju-si , Gyeonggi-do 413-779 , Republic of Korea
| | - Jae Ho Jeong
- Material Science Co., Ltd., (Ace Techno 10-cha, Gasan-dong) #805, 196, Gasandigital 1-ro , Geumcheon-gu, Seoul , 08502 , Republic of Korea
| | - Jie Song
- Material Science Co., Ltd., (Ace Techno 10-cha, Gasan-dong) #805, 196, Gasandigital 1-ro , Geumcheon-gu, Seoul , 08502 , Republic of Korea
| | - Youngmin Jeon
- Daejoo Electronic Material Co., Ltd., 148, Seohaean-Ro , Siheung-Si , Gyeonggi-do 429-848 , Republic of Korea
| | - Jongwook Park
- Department of Chemical Engineering , Kyung Hee University , 1732, Deogyeong-daero , Giheung-gu, Yongin-si , Gyeonggi-do 17104 , Republic of Korea
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