Literature DB >> 25295844

A persistent diazaheptacene derivative.

Jens U Engelhart1, Olena Tverskoy, Uwe H F Bunz.   

Abstract

We describe the synthesis of characterizable diazaheptacene derivatives. Diazaheptacenes need four silylethynyl protecting groups to be isolable. TIPS-ethynyl groups are not bulky enough to allow stabilization. Four Si(sec-Bu)3-ethynyl groups symmetrically attached to the acene core sufficiently protect the formed diazaheptacene from dimerization through Diels-Alder reaction. It was characterized by NMR and UV-vis spectroscopies and cyclic voltammetry.

Entities:  

Year:  2014        PMID： 25295844     DOI： 10.1021/ja509723q

Source DB:  PubMed          Journal:  J Am Chem Soc        ISSN： 0002-7863            Impact factor:   15.419


  7 in total

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2.  Wavelength selective photoactivated autocatalytic oxidation of 5,12-dihydrobenzo[b]phenazine and its application in metal-free synthesis.

Authors:  Lei Bian; Jie Ma; Xiaotong Feng; Yuanhang Wang; Lizhi Zhao; Lei Zhao; Xiayan Wang; Guangsheng Guo; Qiaosheng Pu
Journal:  RSC Adv       Date:  2020-03-09       Impact factor: 4.036

3.  Three-Dimensional Pyrene-Fused N-Heteroacenes.

Authors:  Ben-Lin Hu; Cunbin An; Manfred Wagner; Georgia Ivanova; Anela Ivanova; Martin Baumgarten
Journal:  J Am Chem Soc       Date:  2019-03-18       Impact factor: 15.419

4.  5,7,12,14-Tetrafunctionalized 6,13-Diazapentacenes.

Authors:  Gaozhan Xie; Miriam Hauschild; Hendrik Hoffmann; Lukas Ahrens; Frank Rominger; Michal Borkowski; Tomasz Marszalek; Jan Freudenberg; Milan Kivala; Uwe H F Bunz
Journal:  Chemistry       Date:  2019-12-16       Impact factor: 5.236

5.  On-surface synthesis and characterization of nitrogen-substituted undecacenes.

Authors:  Kristjan Eimre; José I Urgel; Hironobu Hayashi; Marco Di Giovannantonio; Pascal Ruffieux; Shizuka Sato; Satoru Otomo; Yee Seng Chan; Naoki Aratani; Daniele Passerone; Oliver Gröning; Hiroko Yamada; Roman Fasel; Carlo A Pignedoli
Journal:  Nat Commun       Date:  2022-01-26       Impact factor: 17.694

6.  A Stable Hexaazaoctacene Cruciform σ-Dimer.

Authors:  Steffen Maier; Fabian Jester; Marvin T Hoffmann; Frank Rominger; Jan Freudenberg; Andreas Dreuw; Uwe H F Bunz
Journal:  Adv Sci (Weinh)       Date:  2022-07-27       Impact factor: 17.521

7.  Regiocontrolled dimerization of asymmetric diazaheptacene derivatives toward X-shaped porous semiconductors.

Authors:  Guowei Zhang; Ning Xue; Wen Gu; Xingzhou Yang; Aifeng Lv; Yonghao Zheng; Lei Zhang
Journal:  Chem Sci       Date:  2020-09-16       Impact factor: 9.825
  7 in total

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