Synthesis and Characterization of Tris [2, 3-di (o-oxyphenylene) quinoxalin] cyclotriphosphazene--A Novel Spiroheterocyclophosphazene
A Tarassoli, MR Shushizadeh
Index: Tarassoli, Abbas; Shushizadeh, Mohammad Reza Phosphorus, Sulfur and Silicon and the Related Elements, 2003 , vol. 178, # 4 p. 803 - 809
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Abstract
Hexachlorocyclotriphosphazene (NPCl 2) 3, reacted with 2, 3-di (o-hydroxyphenylene) quinoxalin in the presence of a base, to yield tris [2, 3-di (o-oxyphenylene) quinoxalin] cyclotriphosphazene. The synthesis of 2, 3-di (o-hydroxy phenylene) quinoxaline was carried out through three steps: benzoin condensation, oxidation, and reaction of diketone with diamine. The products were characterized by 1 HNMR, 31 PNMR, IR, and mass ...
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