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Citation: HE Gan-Wu, ZHANG Qing-Li, XU Xin-Hua, LI Yan-Jie, ZHANG Xing-Tian, LIU Feng-Wei, . Fusion Reaction for Synthesis of Dumbbell-shape Compounds Containing Two Units of 4,4'-Bipyridine Bridged by 2,2'-Bipyridine[J]. Chinese Journal of Applied Chemistry, ;2007, 24(1): 8-11. shu

Fusion Reaction for Synthesis of Dumbbell-shape Compounds Containing Two Units of 4,4'-Bipyridine Bridged by 2,2'-Bipyridine

HE Gan-Wu ^a,b ,
ZHANG Qing-Li ^a ,
XU Xin-Hua ^a,, ,
LI Yan-Jie ^a ,
ZHANG Xing-Tian ^a ,
LIU Feng-Wei ^a ,
^a,,

1.
a College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082;
2.
b Department of Chemistry of Shaoyang Uiniversity, Shaoyang

Corresponding author: XU Xin-Hua, ,
Received Date: 26 December 2005
Available Online: 26 February 2006
Fund Project: 国家自然科学基金资助课题(20372020) (20372020)

In the synthesis of N-substituted derivatives of 4,4'-bipyridine(2a~2c) via the fusion reaction of tosylate with 4,4'-bipyridine, it was found that the reaction was completed within 30 min, but the molar ratio of the tosylate to 4,4'-bipyridine had significantly influence on the yields of N-substituted derivatives of 4,4'-bipyridine.If the ratio was 1:1, N, N'-disubstituted derivatives of 4,4'-bipyridine was major products.Increasing the ratio of tosylate to 4,4'-bipyridine, the yields of (2a~2c) were increased.When the ratio was 1:10, it generated the N-substituted derivatives of 4,4'-bipyridine(2a~2c) in about 90% yields.By reacting intermediates (2a~2c)(0.6 mmol) with 4,4'-di(bromomethyl)-2,2'-bipyridine (0.3 mmol) according to the same method as above, the dumbbell-shape compounds containing two units of 4,4'-bipyridine bridged by 2,2'-bipyridine(3a~3c) were obtained in 79%~87%.
- solvent-free reaction,
- bipyridine,
- solid phase fusion,
- dumbbell-shape compound
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