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.degree. to 160.degree. 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.
本文揭示了制备3,7-二甲基-5,7-
辛二烯-1-醇和玫瑰氧化物的简单方法。每种方法仅包括一步,即在80℃至160℃的加热搅拌条件下,在零价或二价膦-
钯配合物或零价或二价
钯和具有配位能力的
磷化合物(例如
钯醋酸盐和
三苯基膦的组合)的存在下,通过脱
水或进一步环化3,7-二甲基-6-羟基-
7-辛烯-1-醇原料。这些方法产率高,具有节约成本的特点。