Synthesis of 4,4'-(1,4-Phenylene)di-pyridine and -pyrimidine Derivatives. -As a part of a synthetic program title heterocycles such as (IV), (VI), and (IX) are synthesized in a one-pot procedure. In some cases an alternative synthesis is given.
Synthesis and Characterization of Some New 4,4′-(1,4-Phenylene)dipyrimidine and 6,6′-(1,4-Phenylene)-di(pyridin-2(1H)-one) Derivatives.
✍ Scribed by Raafat M. Shaker
- Publisher
- John Wiley and Sons
- Year
- 2006
- Weight
- 23 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0931-7597
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✦ Synopsis
Abstract
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📜 SIMILAR VOLUMES
In this article, the chemical modification of poly(2,6-dimethyl-l,4-phenylene oxide) (PPO) was carried out by incorporating a n amine group into the PPO backbone. A maximum monosubstitution degree of 65 mol % was reached. The effects of reaction conditions on the functional group content in PPO is d
Poly(2,6-dimethyl-1,4 -phenylene oxide) (PPO) is a chemically resistant polymer and, therefore, an attractive material for the formation of membranes. However, membranes of unmodified PPO prepared by an immersion precipitation possess very low hydraulic permeabilities at the filtration processes. T
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