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【答案】应助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
185012831(金币+40, 翻译EPI+1): 翻译的很好，不过有些估计是您没学有机化学的原因，不是很通顺啊。。 2011-12-03 14:48:00
爱与雨下(金币+1): 2011-12-04 09:59:53
sltmac(金币+10): 2011-12-14 12:38:48
楼主也整理下再求助呀
有很多重复内容呀
In contrast we have found that a wide variety of allylic trichloroacetamidates,which are easily prepared in nearly quantitative yield from the corresponding alcohol and trichloroacetonitrile, readily undergo thermal rearrangement within a few hours in refluxing m-xylene to afford the corresponding trichloroacetamides in isolated yields in excess of 80。In no case has the trichloroacetamide with an unrearranged carbon skeleton been detected. This transformation is formulated as a simple electrocyclic reaction on the basis of its stereo- and regiospecificity which is similar to that observed
in related [3,3]-sigmatropic processes.
For example, the trichloroacetimidate of 1-hepten-3-01 affords 2-heptenyltrichloroacetamide with a trans to cis ratio of at least 98:2.acetonitrile,~ readily undergo thermal rearrangement within a few hours in refluxing m-xylene to afford the corresponding trichloroacetamides in isolated yields in excess of 80。
对比我们发现的多种烯丙基trichloroacetamidate（三氯乙酰胺），他能从相应的酒精和三氯乙氰中容易制备得到，在回流的间二甲苯中几个小时内容易受到热重组影响，从而使得三氯乙酰胺的产量超过80%。 经过检测三氯乙酰胺的碳骨架无论如何都不会产生重排。这种转变是一种基于其实体和区域特异性的简单的电环化反应，这与已观察到的单键转移现象相似。
例如，1-hepten-3-1的三氯乙酰胺为2-heptenyltrichloroacetamide
（庚烯基三氯乙酰胺）提供反顺比至少98:2的乙腈,使其在回流的间二甲苯中几个小时内容易受到热重组影响，从而使得三氯乙酰胺的产量超过80% |
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