申请人:Bayer Aktiengesellschaft
公开号:US04080502A1
公开(公告)日:1978-03-21
Compounds of the formula are disclosed: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are identical or different and represent an optionally substituted alkyl, alkenyl, cycloalkyl or an aryl group and R.sup.4 represents a monosubstituted or polysubstituted aryl group, containing at least one substituent which favours electrophilic aromatic substitution.
揭示了以下式化合物:##STR1## 其中R.sup.1、R.sup.2和R.sup.3相同或不同,代表一个可选择取代的烷基、烯基、环烷基或芳基,而R.sup.4代表一个含有至少一种有利于亲电芳香取代的取代基的单取代或多取代的芳基。