第 37 卷第 2 期 |  | Vol. 37 No. 2 | 2007 年 4 月 | Apr 2007 |
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所屬欄目:有機合成原料
間-乙酰氨基硝基苯與溴苯縮合反應的研究 |
張 敏,蔣麗君,蔡 春
(南京理工大學(xué) 化工學(xué)院,江蘇 南京 210094) |
摘 要:間-乙酰氨基硝基苯與溴苯發(fā)生Ullmann縮合反應是制備3-硝基二苯胺最常用的方法。在氮氣保護下,從反應時(shí)間、反應溫度、催化劑以及它們的物料比方面對此反應作了研究。優(yōu)惠反應條件為:反應時(shí)間24 h,反應溫度163℃,催化劑為銅粉,物料比n(間-乙酰氨基硝基苯) ∶ n(溴苯)=1 ∶ 1.5。在上述條件下N-乙;-3-硝基二苯胺的收率為98%。 |
關(guān)鍵詞:Ullmann縮合;間-乙酰氨基硝基苯;溴苯;氮氣保護 |
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Study on the Condensation of N-(3-Nitroph-enyl)Acetamide with Bromobenzene |
ZHANG Min,JIANG Li-jun,CAI Chun
(Chemical Engineering College,Nanjing University of Science & Technology,Nanjing 210094,China) |
Abstract:3-Nitrodiphenylamine is generally synthesized by the Ullmann condensation of N-(3-nitrophenyl) acetamide with bromobenzene. The effects of the reaction time, the reaction temperature, kind of catalyst used, as well mole ratios between materials, were studied for the condensation. The optimal reaction condition was that reaction time was 24 h;reaction temperature was 163℃;the catalyst was powder of Cu,the mole ratio of N-(3-nitrophenyl)acetamide to bromobenzene was 1∶1.5.The yield of N-acetyl-3-nitrodiphenylamine was 98% under the optimal reaction condition. |
Key words:ullmann;n-(3-nitrophenyl)acetamide;bromobenzene;nitrogen protection |
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作者簡(jiǎn)介:張 敏(1981-),女,江蘇新沂人,碩士研究生,研究方向:精細化工。(E-mail:zm214@sina.com)
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聯(lián) 系 人:蔡 春,教授。研究方向:精細有機化學(xué)品合成。(E-mail:c.cai@mail.njust.edu.cn)
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收稿日期:2006-06-06
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