Lasheng Jiang

以丁二炔-苯环冠醚作为大环化合物,以带有4,4＆#39;-联吡啶正离子结构的线性分子作为半封端分子,通过简便的一锅法合成一种新的[2]轮烷分子,产率为24%。经高分辨质谱、核磁共振氢谱、核磁共振碳谱等手段确认了丁二炔-苯环冠醚大环与带有两个4,4＆#39;-联吡啶二正离子的线性封端分子组装形成[2]轮烷结构,且丁二炔-苯环冠醚在线性分子的两个识别点间作往返运动。

Diacetylene

Rotaxane

10.6023/cjoc201406009

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Citations (2)

CCDC 735168: Experimental Crystal Structure Determination

The Cambridge Structural Database (2013)

Yahui Feng Jingning Li Lasheng Jiang Gao Zhi-hong Weicong Huang

10.5517/ccsp03k

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CCDC 725168: Experimental Crystal Structure Determination

The Cambridge Structural Database (2011)

Yahui Feng Jingning Li Lasheng Jiang Zhihong Gao Weicong Huang

10.5517/ccsblj6

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CCDC 799840: Experimental Crystal Structure Determination

The Cambridge Structural Database (2011)

Xiao‐Yi Yi Ying Yin Hua‐Cai Fang Zhi‐Gang Gu Sheng‐Run Zheng

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

10.5517/ccvv998

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Importance of Molecular-Level Contacts under Solventless Conditions for Chemical Reactions and Self-Assembly

Bulletin of the Chemical Society of Japan (2007)

Akihiro Orita Junji Okano Genta Uehara Lasheng Jiang Junzo Otera

It has been shown that solventless reactions are accelerated when the reactants are mixed at molecular level. Accordingly, a solid film obtained by evaporating a solution of reactants mixture underwent facile reaction either upon grinding or upon simply standing. The effectiveness of these methods is evident from comparison with conventional solventless and solution reactions. It was concluded consequently that, once the molecular-level contacts are formed between reactants, the reaction occurs more efficiently under solventless conditions than in solution. Due to this pre-mixing method, efficient synthesis of [2]rotaxanes and rate acceleration of the Wittig reaction were achieved.

10.1246/bcsj.80.1617

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Citations (4)

Iridium-Catalyzed Anti-Stereocontrolled Asymmetric Ring Opening of Azabicyclic Alkenes with Primary Aromatic Amines

Organometallics (2010)

Dingqiao Yang Yuhua Long Yujuan Wu Xiongjun Zuo Qingqiang Tu

A novel iridium-catalyzed ring-opening reaction of azabicyclic alkenes with a variety of primary aromatic amines is reported, which afforded the corresponding 1,2-trans-diamine derivatives in high yields (up to 96%) with excellent enantioselectivities (up to 97% ee) under relatively mild conditions. The trans configuration of product 2b was confirmed by X-ray crystallography.

Primary (astronomy)

10.1021/om100722f

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