## 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°
✦ LIBER ✦
Synthesis and fungicidal activity of 2,2′-bipyridine derivatives
✍ Scribed by Bernadette M. Kelly-Basetti; Darren J. Cundy; Suzanne M. Pereira; Wolfgang H.F. Sasse; G.Paul Savage; Gregory W. Simpson
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 208 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0960-894X
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## Abstract __Ortho‐__, __meta‐__, or __para__‐nitro benzoic acid were refluxed with excess SOCl~2~ to give acyl chloride, which condensed with β‐amino alcohol in the presence of Et~3~N in dichloromethane to afford β‐hydroxyamide; finally, sulphonation and cyclization were simultaneously conducted