Chiral Nanographene Propeller Embedding Six Enantiomerically Stable [5]Helicene Units,Journal of the American Chemical Society

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Chiral Nanographene Propeller Embedding Six Enantiomerically Stable [5]Helicene Units
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2017-10-25 , DOI: 10.1021/jacs.7b07622
Veronika Berezhnaia ₁ , Myriam Roy ₁ , Nicolas Vanthuyne ₂ , Marco Villa ₁ , Jean-Valère Naubron ₃ , Jean Rodriguez ₂ , Yoann Coquerel ₂ , Marc Gingras ₁

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A one-step synthesis of a nanographene propeller with a D3-symmetry was obtained starting from 7,8-dibromo[5]helicene by Yamamoto nickel(0) couplings. It afforded a chiral polyaromatic hydrocarbon (PAH) embedding six enantiomerically stable [5]helicene units. This dense accumulation of helical strain resulted in a distorted geometry, but stable stereochemistry. The conformational, structural, chiroptical, and photophysical properties of the molecule are reported.

中文翻译：

嵌入六个对映体稳定的 [5] 螺旋单元的手性纳米石墨烯螺旋桨

通过 Yamamoto 镍 (0) 偶联，从 7,8-二溴 [5] 螺旋开始一步合成具有 D3 对称性的纳米石墨烯螺旋桨。它提供了嵌入六个对映体稳定的 [5] 螺旋单元的手性多环芳烃 (PAH)。这种螺旋应变的密集积累导致几何形状扭曲，但立体化学稳定。报告了该分子的构象、结构、手性和光物理特性。

更新日期：2017-10-25

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