第 45 卷第 1 期 |  | Vol. 45 No. 1 | 2015 年 2 月 | Feb 2015 |
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所屬欄目:醫藥及中間體
無(wú)水丁二醛的制備方法 |
曠 東1,2,葉振君1,2,張洪玉1,2,畢 強1,董建生1,施順發(fā)1,張芝平1*
(1. 上海生農生化制品有限公司,上海 200231;2. 上海生華化學(xué)科技有限公司,上海 200231) |
摘 要:以呋喃為原料,經(jīng)溴化和甲氧基化得到2,5-二甲氧基二氫呋喃,再通過(guò)催化加氫合成得到2,5-二甲氧基四氫呋喃,進(jìn)一步通過(guò)加熱水解反應。減壓蒸除反應溶劑,濃縮后得到丁二醛,含量98%(GC),3步反應總收率71%(以原料呋喃計)。反應條件溫和,工藝簡(jiǎn)便,原料成本較低,有工業(yè)應用價(jià)值。 |
關(guān)鍵詞:丁二醛;2,5-二甲氧基四氫呋喃;呋喃 |
中圖分類(lèi)號:TQ224.1 文獻標識碼:A 文章編號:1009-9212(2015)01-0033-03 |
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Synthesis Method of Anhydrous Succinaldehyde |
KUANG Dong1,2, YE Zhen-jun1,2, ZHANG Hong-yu1,2, BI Qiang1, DONG Jian-sheng1, SHI Shun-fa1, ZHANG Zhi-ping1*
(1. Shanghai Shengnong Pesticide Co., Ltd., Shanghai 200231, China; 2. Shanghai Shenghua Chemical Technology Co., Ltd., Shanghai 200231, China) |
Abstract:A synthetic method for the preparation of anhydrous succinaldehyde was developed. In this method, 2,5-dimethoxy-dihydrofuran was obtained via bromination and methoxylation reaction using furan as the starting material. Followed by catalytic hydrogenation of 2,5-dimethoxy-dihydrofuran, the key intermediate 2,5-dimethoxy-tetrahydrofuran was obtained. The pure final product was synthesized through hydrolysis reaction of 2,5-dimethoxy-tetrahydrofuran under heating condition. The purity of succinaldehyde was 98%, and the total yield of the three steps was 71%. This new process had the advantages of mild condition, simple process, and cheap materials. |
Key words:succindialdehyde; 2,5-dimethoxy-dihydrofuran; furan |
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基金項目: “十二五”國家科技支撐計劃項目資助(2011BAE06B01-16)。
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作者簡(jiǎn)介:曠 東(1987-),男,重慶人,碩士,主要從事農藥產(chǎn)品開(kāi)發(fā)。
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聯(lián) 系 人:張芝平,教授級高級工程師,主要從事農用化學(xué)品的研制開(kāi)發(fā)(E-mail:zhangzhiping05@sina.com)。
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收稿日期:2014-11-25
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