David Reger

Along the rim: Reported is the 1,3-dipolar cycloaddition of a polycyclic aromatic azomethine ylide to corannulene, a reaction which occurs exclusively at the rim bond of corannulene, from the convex side in an exo fashion. The cycloadducts were converted, by oxidative dehydrogenation, into pyrrole-fused corannulenes, which exhibited pronounced solvatofluorochromism.

[Communication]
Yuki Tokimaru, Shingo Ito, Kyoko Nozaki
Angew. Chem. Int. Ed., November 13, 2017, https://doi.org/10.1002/anie.201707087 Read article

Black to the future: The bulk intercalation of black phosphorus with alkali metals (namely: K and Na; black spheres) has been developed, showing a complex dynamic structural behavior. By in situ Raman spectroscopy and DFT calculations straightforward fingerprints for the identification of black phosphorus intercalation compounds (BPICs) have been demonstrated.

[Communication]
Gonzalo Abellán, Christian Neiss, Vicent Lloret, Stefan Wild, Julio C. Chacón-Torres, Katharina Werbach, Filippo Fedi, Hidetsugu Shiozawa, Andreas Görling, Herwig Peterlik, Thomas Pichler, Frank Hauke, Andreas Hirsch
Angew. Chem. Int. Ed., October 26, 2017, https://doi.org/10.1002/anie.201707462 Read article

Quick as a flash: This review describes flash pyrolysis methods for the synthesis of unusual molecules and for the characterization of reactive intermediates. The most important methods are presented, and an overview of typical reactions and observations that are possible with the various techniques are presented.

[Review]
Curt Wentrup
Angew. Chem. Int. Ed., October 25, 2017, https://doi.org/10.1002/anie.201705118 Read article

Conductive and emissive: Facile synthetic routes to reach the K-region of pyrene and produce 4,5,9,10-pyrene diimide (PyDI) derivatives are reported. The PyDI derivatives exhibited efficient electron transport properties, with the highest electron mobility of up to 3.08 cm² V⁻¹ s⁻¹. The tert-butyl-substituted compounds (t-PyDI) also showed good one- and two-photon excited fluorescence properties.

[Communication]
Ze-Hua Wu, Zhuo-Ting Huang, Rui-Xue Guo, Chun-Lin Sun, Li-Chuan Chen, Bing Sun, Zi-Fa Shi, Xiangfeng Shao, Hanying Li, Hao-Li Zhang
Angew. Chem. Int. Ed., September 18, 2017, https://doi.org/10.1002/anie.201707529 Read article

Shell out: The rhodium-catalyzed C−H activation/annulation sequence of naphthalene-type aldehydes with internal alkynes has been developed to provide access to phenalenyl-fused pyrylium cations. Also disclosed is the open-shell radical character of the reduced products.

[Communication]
Jiangliang Yin, Meiling Tan, Di Wu, Ruyong Jiang, Chengming Li, Jingsong You
Angew. Chem. Int. Ed., September 11, 2017, https://doi.org/10.1002/anie.201708127 Read article

Warped nanographene: Two fourfold bay-bridged fenestrindane derivatives were prepared in good yields through a non-classical Scholl-type cyclization, paving the way to saddle-shaped nanographenes.

[Communication]
Wai-Shing Wong, Chun-Fai Ng, Dietmar Kuck, Hak-Fun Chow
Angew. Chem. Int. Ed., August 29, 2017, https://doi.org/10.1002/anie.201707505 Read article

Abstract

Antennas up! The synthesis and electron donor–acceptor features of a novel hybrid nanomaterial are reported. The nanohybrid combines the light-harvesting and electron-donating properties of a meso-tetraarylporphyrin (TArP) with the electron-accepting features of nitrogen-doped carbon nanodots (NCNDs).

[Communication]
Francesca Arcudi, Volker Strauss, Luka Đorđević, Alejandro Cadranel, Dirk M. Guldi, Maurizio Prato
Angew. Chem. Int. Ed., August 24, 2017, https://doi.org/10.1002/anie.201704544 Read article

A triply linked subporphyrin dimer was synthesized by stepwise reductive elimination of a β-to-β doubly Pt^II-bridged subporphyrin dimer with the concurrent formation of the meso–meso bond. Despite the curved structure, the triply linked dimer displayed a remarkably red-shifted absorption spectrum and narrow electrochemical HOMO–LUMO gap because of the effectively conjugated π-electronic network.

[Communication]
Yasuhiro Okuda, Norihito Fukui, Jinseok Kim, Taeyeon Kim, Hua-Wei Jiang, Graeme Copley, Masaaki Kitano, Dongho Kim, Atsuhiro Osuka
Angew. Chem. Int. Ed., August 23, 2017, https://doi.org/10.1002/anie.201707123 Read article

Illuminating singlet oxygen: A chemiluminescence probe for singlet oxygen based on dioxetane formation is described. The dioxetane decomposes by a highly efficient chemiexcitation process to emit green light. The probe was used to detect and image intracellular ¹O₂ produced by a photosensitizer in HeLa cells during photodynamic therapy.

[Communication]
Nir Hananya, Ori Green, Rachel Blau, Ronit Satchi-Fainaro, Doron Shabat
Angew. Chem. Int. Ed., August 16, 2017, https://doi.org/10.1002/anie.201705803 Read article