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摘要:2,3,5-三氯吡啶是一种重要的农药中间体,常用于研制各种除草剂。3,5-二氯-2-芳基吡啶类化合物便是其中的一种。本文以2,3,5-三氯吡啶和芳基硼酸为原料,在钯催化下的水相中利用Suzuki偶联反应合成多个不常见的3,5-二氯-2-芳基吡啶类化合物。此工艺产生的三废少,条件温和,产率较高。通过核磁共振氢谱和气相质谱对原料以及目标产物进行表征,确定目标产物的结构式。
关键词:2,3,5-三氯吡啶;芳基硼酸;Suzuki偶联反应;合成;钯催化;3,5-二氯-2-芳基吡啶类化合物;
  

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Mally89: 金币+1 2012-05-17 13:49:10
转弯为你相遇: 金币+20, 翻译EPI+1, ★有帮助 2012-05-21 07:29:50
sltmac: 金币+20 2012-05-21 16:41:16
Abstract: 2, 3, 5 - trichloropyridine is a kind of important intermediates of pesticides, it commonly used in the development of various herbicides.3, 5 - dichloro - 2 - arylpyridine compound is one kind of them.In this paper ,we used 2, 3, 5 - trichloro pyridine and aryl  boric acid as raw materials, synthesized a number of uncommon 3, 5 - dichloro - 2 - aryl pyridine compounds by Suzuki coupling reactio in aqueous catalyzed by palladium.This process produces less the three wastes, under mild conditions and have a high yield.we characterized raw materials and target product by 1H NMR and mass spectrometry , and determined the structure of target product  .
Keywords: 2, 3, 5 - trichloro pyridine boric acid; aryl boric acid  ; Suzuki coupling reaction catalyzed by palladium; synthesis;; 3, 5 - dichloro - 2 - aryl pyridine compounds;
参考一下,
如若这般,当初又为了什么?
2楼2012-05-03 11:30:04
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