申请人:Eli Lilly and Company
公开号:US04087410A1
公开(公告)日:1978-05-02
2,6-Dimethoxyphenol reacts with a tertiary carbinol in the presence of an acid to provide exclusively a 1-hydroxy-2,6-dimethoxy-4-tertiary alkyl)benzene, which when reacted with a halogenated disubstituted phosphite affords a 2,6-dimethoxy-4-tertiary alkyl)phenyl disubstituted phosphate. Reduction of the phenyl phosphate derivative by reaction with an alkali metal affords a 1-(tertiary alkyl)-3,5-dimethoxybenzene, which upon reaction with a demethylating agent provides a 5-(tertiary alkyl)resorcinol.
2,6-二甲氧基酚在酸的存在下与三级醇反应,只生成1-羟基-2,6-二甲氧基-4-三级烷基苯。当该产物与卤代二取代膦酸酯反应时,得到2,6-二甲氧基-4-三级烷基苯基二取代膦酸酯。通过与碱金属反应还原苯基磷酸酯衍生物,得到1-(三级烷基)-3,5-二甲氧基苯,该产物与去甲基化试剂反应后,生成5-(三级烷基)邻苯二酚。