申请人:Schering Agrochemicals Limited
公开号:US05264609A1
公开(公告)日:1993-11-23
Compounds of formula I ##STR1## in which Ar is aryl and R.sup.1 and R.sup.2 are alkyl, are obtained by a process in which a compound of formula II ##STR2## where Z is a disubstituted amino group, a) is reacted with an alcohol, R.sup.2 OH, preferably under acidic conditions, to give a compound of formula III ##STR3## which is then dealkanolated, or b) is hydrolysed under acid conditions, to give a compound of formula IV ##STR4## which then alkylated. The compounds of formula I have fungicidal activity, as do many of the compounds of formula II, III and IV.
通过以下公式I的化合物 ##STR1## 其中Ar是芳基,R.sup.1和R.sup.2是烷基,可通过以下过程获得:将公式II的化合物 ##STR2## 其中Z是二取代氨基团,a)与醇反应,R.sup.2 OH,最好在酸性条件下,得到公式III的化合物 ##STR3## 然后脱烷醇,或b)在酸性条件下水解,得到公式IV的化合物 ##STR4## 然后烷基化。公式I的化合物具有杀真菌活性,公式II、III和IV的许多化合物也具有相同活性。