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18.447 Aktuelle Fachpublikationen in Angewandte Chemie International Edition

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DNA Origami Scaffolds as Templates for Functional Tetrameric Kir3 K+ Channels

17.01.2018 | Tatsuki Kurokawa, Shigeki Kiyonaka, Eiji Nakata, Masayuki Endo, Shohei Koyama, Emiko Mori, Nam Ha Tran, Huyen Dinh, ..., Angewandte Chemie International Edition, 2018

In native systems, scaffolding proteins play important roles in assembling proteins into complexes to transduce signals. This concept is yet to be incorporated in assembling functional transmembrane protein complexes in artificial systems. To address this issue, DNA origami has potentiality to ...

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DNA Origami Scaffolds as Templates for Functional Tetrameric Kir3 K+ Channels

17.01.2018 | Tatsuki Kurokawa, Shigeki Kiyonaka, Eiji Nakata, Masayuki Endo, Shohei Koyama, Emiko Mori, Nam Ha Tran, Huyen Dinh, ..., Angewandte Chemie International Edition, 2018

In native systems, scaffolding proteins play important roles in assembling proteins into complexes to transduce signals. This concept is yet to be incorporated in assembling functional transmembrane protein complexes in artificial systems. To address this issue, DNA origami has potentiality to ...

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Fused‐Ring Formation via an Intramolecular "Cut‐and‐Sew" Reaction between Cyclobutanones and Alkynes

16.01.2018 | Lin Deng, Likun Jin, Guangbin Dong, Angewandte Chemie International Edition, 2018

Herein, we describe the development of a catalytic intramolecular "cut‐and‐sew" transformation between cyclobutanones and alkynes to construct cyclohexenone‐fused rings. The challenge arises from the need for selective coupling at the more sterically hindered proximal position, which can be ...

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Artificial Cysteine S‐Glycosylation Induced by Per‐O‐Acetylated Unnatural Monosaccharides during Metabolic Glycan Labeling

16.01.2018 | Wei Qin, Ke Qin, Xinqi Fan, Linghang Peng, Weiyao Hong, Yuntao Zhu, Pinou Lv, Yifei Du, Rongbing Huang, Mengting Han ..., Angewandte Chemie International Edition, 2018

Peracetylated unnatural sugars—the “arrows” used by glycoscientists for decades to label cellular glycans—can induce artificial cysteine glycosylation on various proteins, as reported in the Communication (DOI: 10.1002/anie.201711710) by C. Wang, X. Chen et al. This “off‐targeting” of the ...

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Stereoselective Construction of Halogenated Quaternary Carbon Centers by Brønsted Base Catalyzed [4+2] Cycloaddition of α‐Haloaldehydes

16.01.2018 | Qiang Li, Liang Zhou, Xu‐Dong Shen, Kai‐Chuan Yang, Xiang Zhang, Qing‐Song Dai, Hai‐Jun Leng, Qing‐Zhu Li, Jun‐Long Li, Angewandte Chemie International Edition, 2018

Abstract Asymmetric construction of halogenated quaternary carbon centers under mild reaction conditions remains challenging. Reported here is an unprecedented and highly stereoselective Brønsted base catalyzed [4+2] cycloaddition between either α‐chloro‐ or α‐bromoaldehydes and cyclic enones. ...

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Divergent Pathways Involving 1,3‐Dipolar Addition and N−N Bond Splitting of an Organic Azide across a Zirconium Methylidene

16.01.2018 | Takashi Kurogi, Manoj V. Mane, Shuai Zheng, Patrick J. Carroll, Mu‐Hyun Baik, Daniel J. Mindiola, Angewandte Chemie International Edition, 2018

Abstract The zirconium methylidene (PNP)Zr=CH2(OAr) (1) reacts with N3Ad to give two products (PNP)Zr=NAd(OAr) (2) and (PNP)Zr(η2‐N=NAd)(N=CH2)(OAr) (3), both resulting from a common cycloaddition intermediate (PNP)Zr(CH2N3Ad)(OAr) (A). Using a series of control experiments in combination with ...

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Frontispiece: Photoinduced Rearrangement of Dienones and Santonin Rerouted by Amines

16.01.2018 | Zhipeng Zhang, Maxim Ratnikov, Glen Spraggon, Phil B. Alper, Angewandte Chemie International Edition, 2018

Photochemistry P. B. Alper et al. report in their Communication on page 904 ff. that the photoinduced rearrangement pathways of simple 2,5‐dienones and the natural product santonin are effectively rerouted by amines.

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Spotlights on our sister journals: Angew. Chem. Int. Ed. 4/2018

16.01.2018 | Angewandte Chemie International Edition, 2018

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Spotlights on our sister journals: Angew. Chem. Int. Ed. 4/2018

16.01.2018 | Angewandte Chemie International Edition, 2018

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Seeded Polymerization through the Interplay of Folding and Aggregation of an Amino‐Acid‐based Diamide

16.01.2018 | Soichiro Ogi, Kentarou Matsumoto, Shigehiro Yamaguchi, Angewandte Chemie International Edition, 2018

Amino‐acid‐based diamides are widely used as a substructure in supramolecular polymers, and also represent key components of polypeptides that help to understand protein folding. Herein, we report that the interplay of folding and aggregation of a diamide can be used to achieve seed‐initiated ...

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