第 38 卷第 6 期 |  | Vol. 38 No. 6 | 2008 年 12 月 | Dec 2008 |
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所屬欄目:染料、顏料及涂料
催化加氫法綠色合成N-(3-氨基-4-甲氧基苯基)乙酰胺 |
張群峰,呂井輝,馬 磊,盧春山,許孝良,梁秋霞,李小年
(浙江工業(yè)大學(xué) 工業(yè)催化研究所,綠色化學(xué)合成技術(shù)國家重點(diǎn)實(shí)驗室培育基地,浙江 杭州 310032) |
摘 要:N-(3-氨基-4-甲氧基苯基)乙酰胺是生產(chǎn)偶氮型分散染料的一類(lèi)重要中間體,F有的工業(yè)生產(chǎn)方法仍全部采用鐵粉還原。筆者開(kāi)發(fā)了一種高效的Pd/C催化劑,分別選用甲醇和水作為反應溶劑,實(shí)現了高活性、高選擇性和高穩定性地催化加氫制備N(xiāo)-(3-氨基-4-甲氧基苯基)乙酰胺。為了抑制原料和產(chǎn)物在水溶液中的副反應,添加少量堿性助劑可以提高目標產(chǎn)物的選擇性,最高達到99.3%。 |
關(guān)鍵詞:液相催化加氫;N-(3-氨基-4-甲氧基苯基)乙酰胺;Pd/C催化劑;高活性;高選擇性;高穩定性 |
中圖分類(lèi)號:O625.63+2 文獻標識碼:A 文章編號:1009-9212(2008)06- 0041-03 |
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Catalytic Hydrogenation for the Green Synthesis of N-(3-Amino-4-methoxyphenyl)acetamide |
ZHANG Qun-feng,L?譈 Jing-hui,MA Lei,LU Chun-shan,XU Xiao-liang,Liang Qiu-xia,LI Xiao-nian
(Industrial Catalysis Institute of Zhejiang University of Technology,State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology,Hangzhou 310032,China) |
Abstract:N-(3-Amino-4-methoxyphenyl)acetamide is an important intermediate for the production of azo disperse dyes,while it is still produced by reduction with iron powder in industry currently. A novel Pd/C catalyst with high activity,high selectivity and good stability developed by our group was used for the hydrogenation of N-(3-nitro-4-methoxyphenyl)acetamide into N-(3-amino-4-methoxyphenyl)acetamide in methanol and water,respectively. The hydrolyzations of reactant and product were decreased in the presence of little basic agent,and the selectivity of 99.3% can be obtained. |
Key words:liquid catalytic hydrogenation;N-(3-amino-4-methoxyphenyl)acetamide;Pd/C catalyst;high activity;high selectivity;good stability |
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基金項目:浙江省科技廳綠色化工重大專(zhuān)項(2005C11023-01)。
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作者簡(jiǎn)介:張群峰(1980-),男,浙江東陽(yáng)人,助理研究員,碩士,主要從事于加氫催化劑和加氫工藝的開(kāi)發(fā)和研究。(E-mail:zhangqf80@163.com)
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聯(lián) 系 人: 李小年,男,教授、博士生導師。(E-mail:xnli@zjut.edu.cn)
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收稿日期: 2008-11-2
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