An Efficient and Regiospecific Synthesis of New 2,2′-Bipyridine Derivatives in Water.
✍ Scribed by Shujiang Tu; Bo Jiang; Changsheng Yao; Hong Jiang; Junyong Zhang; Runhong Jia; Yan Zhang
- Publisher
- John Wiley and Sons
- Year
- 2007
- Weight
- 22 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0931-7597
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## Abstract A series of polyimides containing 2,2′‐bipyridine, 7, were synthesized by reaction of 4,4′‐diamino‐2,2′‐bipyridine (4) with various aromatic dianhydrides, followed by imidization upon heating. These polyimides are fairly thermostable, and 5% weight loss occurs in the range of 484°C‐580°
We have synthesized a new type of tris-2,2'-bipyridine ligand of 7 and 8 do not interact appreciably, as is evident from their with 4,4'-and 6,6'-disubstituted 2,2'-bipyridine (bpy) units. electrochemical and photophysical data. The lifetime of the The terminal 4,4'-disubstituted 2,2'-bipyridine moi
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