四(二乙胺基)溴化鏻的合成及用于相转移催化Halex反应 |
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引用本文: | 赵文娟,李亚明,张华,万相见,那强. 四(二乙胺基)溴化鏻的合成及用于相转移催化Halex反应[J]. 精细化工, 2003, 20(7): 407-408 |
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作者姓名: | 赵文娟 李亚明 张华 万相见 那强 |
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作者单位: | 大连理工大学,精细化工国家重点实验室,辽宁,大连,116012;大连理工大学,精细化工国家重点实验室,辽宁,大连,116012;大连理工大学,精细化工国家重点实验室,辽宁,大连,116012;大连理工大学,精细化工国家重点实验室,辽宁,大连,116012;大连理工大学,精细化工国家重点实验室,辽宁,大连,116012 |
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摘 要: | 四(二乙胺基)溴化鏻(TPB)是制备含氟芳香族化合物的一种新型相转移催化剂。以PCl3作原料经季鏻化、氨解、中和、烷基化4步反应合成了TPB,反应总收率41%,w(TPB)=90%。产物由31PNMR、1HNMR、MS进行了结构确证。并将该催化剂应用于Halex反应制备对氟硝基苯,初步考察了其催化效果,收率62%。
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关 键 词: | 四(二乙胺基)溴化鏻 相转移催化剂 对氟硝基苯 |
文章编号: | 1003-5214(2003)07-0407-03 |
修稿时间: | 2002-12-24 |
Synthesis of Tetrakis(diethylamino)phosphonium Bromide and Its Application as PTC in Halex Reaction |
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Abstract: | Tetrakis(diethylamino)phosphonium bromide(TPB) was a novel phase transfer catalyst used to prepare fluorinated aromatic compounds.TPB was synthesized from PCl3 through four step reactions:quaternization,amination,neutralization and alkylation.The yield was up to 41%,w(TPB)=90%.The structure of TPB was characterized by31PNMR,1HNMR and MS.It was used in Halex reaction to prepare p nitrofluorobenzene with 62% yield and its catalytic capability was studied. |
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Keywords: | Tetrakis(diethylamino)phosphonium bromide(TPB) PTC p-nitrofluorobenzene |
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