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Linear Nonalternant Isomers of Acenes Fusing Multiple Azulene Units
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2022-06-14 , DOI: 10.1002/anie.202205658 Shangshang Wang 1, 2 , Min Tang 2 , Lin Wu 2 , Lifang Bian 2 , Liang Jiang 2 , Jiali Liu 2 , Zheng-Bin Tang 2 , Yimin Liang 2 , Zhichang Liu 2
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2022-06-14 , DOI: 10.1002/anie.202205658 Shangshang Wang 1, 2 , Min Tang 2 , Lin Wu 2 , Lifang Bian 2 , Liang Jiang 2 , Jiali Liu 2 , Zheng-Bin Tang 2 , Yimin Liang 2 , Zhichang Liu 2
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A modular two-step [4+3] annulation approach to azulene units was developed starting from readily available aryl-substituted cyclopentadiene and ortho-haloaryl aldehyde by dehydration condensation followed by palladium-catalyzed C−H coupling. It facilitates the syntheses of four nonalternant isomers of pentacene and hexacene including DBA, BDA1, BDA2, and NDA which exhibit narrow band gaps and protonation-caused enhanced near-infrared emission.
中文翻译：
并苯的线性非交替异构体融合多个 Azulene 单元
从容易获得的芳基取代的环戊二烯和邻卤代芳基醛开始，通过脱水缩合，然后是钯催化的 C-H 偶联，开发了一种模块化的两步 [4+3] 环化方法来制备azulene 单元。它促进了并五苯和六苯的四种非交替异构体的合成，包括 DBA、BDA1、BDA2 和 NDA，它们表现出窄带隙和质子化引起的增强近红外发射。
更新日期：2022-06-14
中文翻译：
并苯的线性非交替异构体融合多个 Azulene 单元
从容易获得的芳基取代的环戊二烯和邻卤代芳基醛开始，通过脱水缩合，然后是钯催化的 C-H 偶联，开发了一种模块化的两步 [4+3] 环化方法来制备azulene 单元。它促进了并五苯和六苯的四种非交替异构体的合成，包括 DBA、BDA1、BDA2 和 NDA，它们表现出窄带隙和质子化引起的增强近红外发射。
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