The invention belongs to the technical field of chemical, the invention discloses a method for preparing aromatic - flavor spices ambrein. The synthesis methods of scientific research personnel of the company for the Ambrocenide in-depth study, found that for the key is how to improve the synthesis yield efficiency finally condensation, so we use ethylene glycol ether two + polyphosphoric acid + two a combination of acetone ketal instead of p-toluenesulfonic acid + acetone + toluene system, we not only improve the yield of condensation from the original 50% increased to more than 80%, the total yield of never more than 20% increased to nearly 30%, and the reaction time from the original 24 hours shortened to 3-8 hours.
【技术实现步骤摘要】
【技术保护点】
1.一种木香-龙涎香型的香料的制备方法,其制备方法为:(1)将10%的硫酸和甲基三辛基氯化铵加入到反应瓶中,再将α-环氧柏木烷加入到上述混合物中,混合物在30-35℃下搅拌48小时,反应完毕,反应液用乙酸乙酯萃取,有机相依次用10%NaHCO3溶液、水、饱和氯化钠溶液洗涤,有机相再用无水硫酸钠去除水分,浓缩,浓缩物用石油醚重结晶,得到柏木烷二醇;其特征包括下述步骤:(2)将柏木烷二醇、多聚磷酸和丙酮二甲缩酮混合,混合物在20-25℃下搅拌3-8小时,应完毕,反应液加入有机溶剂I,有机相用5-30%的碳酸氢钠溶液洗涤直至中性,有机相再用无水硫酸钠去除水分,将溶剂浓缩后,用有机溶剂II重结晶得到白色晶体。
【技术特征摘要】
【专利技术属性】
技术研发人员:高红云,王影,王鑫,
申请(专利权)人:北京安胜瑞力科技有限公司,
类型:发明
国别省市:11
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