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第 37 卷第 2 期Vol. 37 No. 2
2007 年 4 月Apr 2007

所屬欄目:農藥及中間體

嘧菌酯的合成
董 捷,廖道華,樓江松,皮紅軍 (華東理工大學(xué) 藥學(xué)院,上海 200237)
摘 要:報道了合成高效殺菌劑嘧菌酯(1)的方法。首先以鄰羥基苯乙酸(2)為原料與原甲酸三甲酯在醋酐中反應制備3-(α-甲氧基)-亞甲基苯并呋喃-2(3氫)-酮(4),收率59%;化合物4 再與甲醇鈉、4,6-二氯嘧啶在四氫呋喃中反應得到(E)-2-[2-(6-氯嘧啶-4-基氧基)苯基]-3-甲氧基丙烯酸甲酯(6),收率60%;化合物6 與水楊腈反應得到嘧菌酯(1),收率81%?偸章28.6%。
關(guān)鍵詞:殺菌劑;嘧菌酯;鄰羥基苯乙酸;4,6-二氯嘧啶;水楊腈
Synthesis of Azoxystrobin
DONG Jie,LIAO Dao-hua,LOU Jiang-song,PI Hong-jun (School of Pharmacy,East China University of Science and Technology,Shanghai 200237,China)
Abstract:Azoxystrobin,methyl(E)-2-{2-[6-(2-cyanophenoxy)pyrimidin-4-yloxy] phenyl} -3-methoxyacrylate (1),is a new fungicide of methoxyacrylates. A new practical synthesis of azoxystrobin was described in this paper. 2-Hydroxyphenylacetic(2)was treated with trimethyl orthoformate and acetic anhydride to form 3-(-methoxy)-methylenebenzo- furan-2(3H)-one(4),the yield is 59%. The compound 4 then reacted with sodium methoxide,methanol and 4,6-dichloropyrimidine in tetrahydrofuran to produce methyl(E)-2-[2-(6-chloropyrimidin-4-yloxy)phenyl]-3-methoxyacrylate(6),the yield is 60%. Then the compound 4 was treated with 2-cyanophenol to form azoxystrobin,and the yield is 81%. The total yield of the product is 28.6%.
Key words:fungicide; azoxystrobin; 2-hydroxyphenylacetic;4,6-dichloropyrimidine; 2-cyanophenol
作者簡(jiǎn)介:董 捷(1981- ),男,河北承德人,碩士研究生,主要從事農藥合成工藝研究。(E-mail:dongjie361@163.com)
聯(lián) 系 人:廖道華(1956- ),男,副教授,碩士生導師,主要從事農藥有機合成。(E-mail:Liaodh@ecust.edu.cn)
收稿日期:2006-12-27
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