Citation: Ming Ming Yu, Xia Li, Miao Luan, Jun Na Gao, Qiu Zhi Shi, Ming Sheng Tang, Liu He Wei. An improved synthesis of bis (cyclopentadienone)[J]. Chinese Chemical Letters, ;2010, 21(10): 1157-1161. doi: 10.1016/j.cclet.2010.04.005 shu

An improved synthesis of bis (cyclopentadienone)

a Department of Chemistry, Zhengzhou University, Zhengzhou 450001, China;
b College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China

Received Date: 11 January 2010

Fund Project: We thank the National Natural Science Foundation of China for financial support (Nos.5087309350903075)we also thank Professor Tong Zhao,Professor Fengqi Guo and Caimei Ren for assistance.

An improved strategy for the synthesis of 3, 3'-(oxy-p-phenylene) bis (2, 4, 5-tdphenylcyclopentadienone) was developed, which includes three steps:Friedel-Crafts reaction, oxidation and condensation. Importantly, the use of KMnO₄ made the second step simple and efficient, which has potential application to synthesis of bis (cyclopentadienone)s. The course of oxidation has been confirmed by isolated intermediates.
- Bis (eyclopentadienone),
- Friedel-Crafts reaction,
- Oxidation,
- Condensation
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