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2,6-二(对氨基苯)苯并[1,2-d;5,4-d′]二噁唑的合成

Chinese Journal of Synthetic Chemistry(2016)

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Abstract
以4,6-二氨基间苯二酚二磷酸盐和对氨基苯甲酸为原料,在多聚磷酸中,添加还原剂SnCl2·2H2 O,经缩聚反应合成了有机二胺单体———2,6-二(对氨基苯)苯并[1,2-d;5,4-d′]二噁唑(DIABO),其结构经1H NMR和FT-IR确证。最佳反应条件为:10.01 mol, PPA中P2 O5质量分数为84%, SnCl2·2H2 O用量为8 wt%,在氮气保护下于200℃反应4 h ,产率97%。 TG研究结果表明:DIABO的起始分解温度为401.0℃。
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6-diaminoresorcinol diphosphatesalt,p-aminobenzoic acid,6-di ( p-amino phenyl ) benzo-[1,2-d,4-d′] bisoxazole,synthesis
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