Chinese Journal of Chemistry
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Recently Published Articles
- Contents: Chin. J. Chem. 11/2015 (pages 1223–1227)
Article first published online: 17 NOV 2015 | DOI: 10.1002/cjoc.201590026
- You have free access to this contentCover Picture: A Short Synthesis of Clionamine D (Chin. J. Chem. 11/2015) (page 1221)
Xiang Hao, Jingjing Wu, Hailong Tian, Yong Shi, Jingrong Lin and Weisheng Tian
Article first published online: 17 NOV 2015 | DOI: 10.1002/cjoc.201590025
The cover picture shows a short and efficient synthesis of clionamine D. Steroidal α-methylene-γ-lactones are versatile intermediates for synthesizing related natural products such as clionamines A–D, a family of marine natural alkaloids with potent autophagy bioactivities and unprecedented chemical structures. Employing single oxygen to break the C22-C23 double bond via a [2+2]/retro-[2+2] process, Shi and Tian et al. have developed a scalable, four-step procedure to prepare α-methylene-γ-lactone directly from steroidal sapogenin–needn't prepare dinorcholanic lactone first. A synthesis of clionamine D was therefore achieved in eight steps with an overall yield of 31%. More details are discussed in the article by Tian et al. on page 1235–1238.
- Three Dimensional Sulfur-doped Graphene Hydrogels with Tetrathiafulvalene for High Performance Supercapacitors
Jingli Zhang, Man Jiang, Lingbao Xing, Kun Qin, Tianzhen Liu, Jin Zhou, Weijiang Si, Hongyou Cui and Shuping Zhuo
Article first published online: 13 NOV 2015 | DOI: 10.1002/cjoc.201500656
Three-dimensional porous sulfur-doped graphene hydrogels are prepared by using tetrathiafuvalene as reducing and doping agents. SGHs show superior capacitive performance with high specific capacitance, excellent rate capability and good long-term cycle stability in KOH electrolyte.
- Preparation and Electrochemical Performance of Li[Ni1/3Co1/3Mn1/3]O2 Synthesized Using Li2CO3 as Template (pages 1303–1309)
Jibin Zhang, Yanjun Zhong, Xiaxing Shi, Zhuo Zheng, Weibo Hua, Yanxiao Chen, Wenyuan Liu and Benhe Zhong
Article first published online: 13 NOV 2015 | DOI: 10.1002/cjoc.201500455
The porous Li[Ni1/3Co1/3Mn1/3]O2 has been synthesized via a facile carbonate co-precipitation method using Li2CO3 as template and lithium-source. The porous structure of Li[Ni1/3Co1/3Mn1/3]O2 can offer more Li+ location and shorten the distance of Li+ ion and electron, resulting in excellent electrochemical performance.
- Fabrication of Porous Nitrogen-Doped Carbon Materials as Anodes for High-Performance Lithium Ion Batteries (pages 1293–1302)
Junke Ou, Lin Yang, Yongzhi Zhang, Li Chen, Yong Guo and Dan Xiao
Article first published online: 13 NOV 2015 | DOI: 10.1002/cjoc.201500519
A porous nitrogen-doped carbon material was fabricated by using nitrogen containing gelatin as the carbon source and nano-silica obtained by a simple flame synthesis approach as the template. The as-prepared carbons (especially the HNC-700) delivered optimal reversible capacities of 1084 mAh·g−1 at the current density of 37.2 mA·g−1 (0.1 C) and 309 mAh·g−1 even at 3.72 A·g−1 (10 C). These results suggest that the as-obtained carbon materials would be promising anode materials for lithium ion batteries.