Synthesis of 2-hetaryl-5-phenyl-1,3,4-oxadiazole and bis-1,3,4-oxadiazole derivatives and their use as fluorescent whiteners for polyester fibres
β Scribed by D.W. Rangnekar; R.C. Phadke
- Publisher
- Elsevier Science
- Year
- 1985
- Tongue
- English
- Weight
- 536 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0143-7208
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π SIMILAR VOLUMES
Thermal reactions of 3-phenyl-5-arylamino-1,2,4-oxadiazoles I and II were investigated. Neat heating at ca. 250ΠC for 6 hours afforded H 2 O, benzonitrile, arylcyanamides, arylamines, azobenzene, benzimidazole derivatives, and 3,3Π-diphenyl-5,5Π-bis[1,2,4-oxadiazolyl]. Analogous results were obtaine
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## Abstract Six 1,3,4βoxadiazoleβcontaining polyethers with reduced viscosities of 0,65β1,17 dL Β· g^β1^ were synthesized by highβtemperature solution polycondensation of an activated difluoride, 2,5βbis(4βfluorophenyl)β1,3,4βoxadiazole, with aromatic diols possessing a variety of ring structures. T