第 49 卷第 2 期 |  | Vol. 49 No. 2 | 2019 年 4 月 | Apr 2019 |
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所屬欄目:農藥及中間體
光氣法合成水楊腈的研究 |
過(guò)學(xué)軍,劉長(cháng)慶,徐小兵,黃顯超,李紅衛
(安徽廣信農化股份有限公司,安徽 廣德 242200) |
摘 要:以水楊酰胺為原料,通過(guò)與光氣直接高溫回流反應得到水楊腈,并通過(guò)氣相色譜確定了水楊腈含量大于98%,水楊酸胺等雜質(zhì)殘留在0.5%以下。反應具有選擇性好、收率高 、副產(chǎn)物少、后處理簡(jiǎn)單等優(yōu)點(diǎn),為下游產(chǎn)品嘧菌酯合成提供了質(zhì)量保證。 |
關(guān)鍵詞:水楊酰胺;光氣法;水楊腈 |
中圖分類(lèi)號:TQ246.7 文獻標識碼:A 文章編號:1009-9212(2019)02-0016-03 |
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Synthesis of Salicylnitrile by Phosgene Method |
GUO Xue-jun, LIU Chang-qing, XU Xiao-bing, HUANG Xian-chao, LI hong-wei
(Anhui Guangxin Agrochemical Co., Ltd., Guangde 242200, China) |
Abstract:Salicylnitrile was synthesized from the reaction of salicylamide with phosgene under reflux at high temperature. The purity of salicylnitrile synthesized from this method was above 98% and the impurity residue was below 0.5% analyzed using gas chromatography. This method has many advantages including good selectivity, high yield, few by-products and simple post-treatment. It provides high quality assurance for the synthesis of pyrimethyl ester. |
Key words:salicylamide; phosgene method; salicylicylnitrile |
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作者簡(jiǎn)介:過(guò)學(xué)軍(1969-),男,江蘇無(wú)錫人,工程師,主要從事化工工藝和化工安全研究工作(E-mail:xuejun7188@126.com)。
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收稿日期:2018-12-03
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