申请人:Hoechst Celanese Corp.
公开号:US04997977A1
公开(公告)日:1991-03-05
This invention provides multistep process embodiments for the production of novel esters which exhibit nonlinear optical response. A process embodiment is illustrated by the reaction of a Schiff base with a substituted acetic acid to form a stilbene alcohol intermediate: ##STR1## The stilbene alcohol intermediate is decarboxylated, and then is esterified in the presence of a pyridine type catalyst to provide an ester with a conjugated structure.
这项发明提供了生产表现非线性光学响应的新型酯类的多步骤过程实施方案。其中一个过程实施方案是通过Schiff碱与取代乙酸反应形成苯乙烯醇中间体:##STR1## 然后将苯乙烯醇中间体脱羧,再在吡啶类催化剂存在下酯化,以提供具有共轭结构的酯类。