申请人:Consortium F/u/ r Elektrochemische Industrie GmbH
公开号:US04503240A1
公开(公告)日:1985-03-05
Process for the preparation of 8,12-epoxy-13,14,15,16-tetranorlabdane by way of converting farnesyl bromide to farnesyl cyanide, followed by the saponification of the farnesyl cyanide to homofarnesic acid which is then cyclized to norambreinolide in the presence of titanium tetrachloride, converting the norambreinolide with LiAlH.sub.4 to 8-hydroxy-13,14,15,16-tetranorlabdane-12-ol, and cyclization of the diol in the presence of POCl.sub.3 to 8,12-epoxy-13,14,15,16-tetranorlabdane. The resulting product exhibits an amber scent, used in perfumery.
制备8,12-环氧-13,14,15,16-四去甲基松烷的过程是:将法尼烷溴化物转化为法尼烷腈,随后将法尼烷腈皂化为同型法尼酸,然后在四氯化钛的存在下环化为诺安布雷诺酮,将诺安布雷诺酮与LiAlH4转化为8-羟基-13,14,15,16-四去甲基松烷-12-醇,再在POCl3的存在下环化二醇为8,12-环氧-13,14,15,16-四去甲基松烷。所得产物具有琥珀香味,用于香水制造。