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发明公开
CN101234957A 一种2，7－二甲基－2，4，6－辛三烯－1，8－二醛的合成方法 有权

一种2，7－二甲基－2，4，6－辛三烯－1，8－二醛的合成方法
摘要：
本发明公开了一种2，7－二甲基－2，4，6－辛三烯－1，8－二醛合成的新方法。该方法以反式－1，4－二氯－2－丁烯为起始原料，经格氏反应、缩合反应与酸性水解反应合成2，7－二甲基－2，4，6－辛三烯－1，8－二醛。本发明的优点是：1)采用反式－1，4－二氯－2－丁烯为为起始原料，经三步反应合成2，7－二甲基－2，4，6－辛三烯－1，8－二醛，总收率高。2)在2，7－二甲基－2，4，6－辛三烯－1，8－二醛的合成中，反应选择性好，副产物少。3)该方法工艺较简单，操作方便。
摘要（英）：

The invention discloses a new method for synthesis of 2, 7-dimethyl-2, 4, 6-octatrien-1, 8-dialdehyde. The method synthesizes 2, 7-dimethyl-2, 4, 6-octatrien-1, 8-dialdehyde using trans-1, 4-dichloro-2-butylene as the raw material, which undergoes Grignard reaction, condensation reaction and acidic hydrolysis reaction. The method has the advantages that, firstly, trans-1, 4-dichloro-2-butylene is adopted as the raw material for synthesizing 2, 7-dimethyl-2, 4, 6-octatrien-1, 8-dialdehyde after three procedural reactions, so the total yield is high; secondly, synthesis of 2, 7-dimethyl-2, 4, 6-octatrien-1, 8-dialdehyde has good reaction selectivity and little by-products; and thirdly, the process is simple with convenient operation.

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