申请人:Givaudan Corporation
公开号:US04804776A1
公开(公告)日:1989-02-14
A novel process for the manufacture of p-tert.butylbenzene derivatives is described. The process comprises reacting p-tert.butyl-benzyl chloride with a 2-formylpropionate of the formula ##STR1## wherein R represents lower-alkyl, e.g. C.sub.1-6 -alkyl, especially methyl or ethyl, and, if desired, converting the resulting compound of the formula ##STR2## wherein R has the above significance, optionally after purification, into p-tert.butyl-.alpha.-methyl-hydrocinnamaldehyde by decarbalkoxylation.
本文描述了一种制造对叔丁基苯基衍生物的新工艺。该工艺包括将对叔丁基苯基氯与化学式为##STR1## 的2-甲酰基丙酸酯反应,其中R代表低碳基,例如C.sub.1-6-烷基,特别是甲基或乙基,如果需要,在纯化后,通过脱羧碳酸化反应将得到的化合物转化为对叔丁基-α-甲基-羟肉桂醛。