Simple methods for producing 3,7-dimethyl-5,7-octadiene-1-ol and rose oxide are disclosed. Each of the methods comprises only one step in which the raw material, 3,7-dimethyl-6-hydroxy-7-octene-1-ol is dehydrated or further cyclized by heating while stirring at 80 to 160°C in the presence of a zero-valent or divalent phosphine-palladium complex, or a combination of zero-valent or divalent palladium and a phosphorous compound having coordinating capabilities such as the combination of palladium acetate and triphenylphosphine. The methods give high yields and have cost saving characteristics.
本发明公开了生产 3,7-二甲基-5,7-
辛二烯-1-醇和氧化玫瑰的简单方法。每种方法都只包括一个步骤,即原料 3,7-二甲基-6-羟基-
7-辛烯-1-醇在零价或二价
磷钯络合物,或零价或二价
钯与具有配位能力的
磷化合物(如
醋酸钯和
三苯基膦的组合)的存在下,在 80 至 160°C 的温度下搅拌加热,使其脱
水或进一步环化。这些方法产量高,而且具有节省成本的特点。