申请人:Bayer Aktiengesellschaft
公开号:US04639527A1
公开(公告)日:1987-01-27
The known .beta.-hydroxyethyl-(1,2,4-triazole) derivatives of the formula ##STR1## in which R.sup.1 represents alkyl, halogenoalkyl, alkenyl, alkinyl, optionally substituted cycloalkyl, optionally substituted cycloalkenyl, optionally substituted aryl, optionally substituted aralkyl, optionally substituted aralkenyl or an optionally substituted heterocyclic radical and R.sup.2 represents hydrogen, alkyl, halogenoalkyl, alkenyl, alkinyl, optionally substituted cycloalkyl, optionally substituted cycloalkenyl, optionally substituted aryl, optionally substituted aralkyl, optionally substituted aralkenyl or an optionally substituted heterocyclic radical, are prepared by a new process, which comprises stirring a .beta.-hydroxyethyl-(1,3,4-triazole) derivative of the formula ##STR2## in which R.sup.1 and R.sup.2 have the abovementioned meanings, in the presence of a base and in the presence of an aprotic, dipolar diluent.
已知的β-羟乙基-(1,2,4-三唑)衍生物的化学式为##STR1##其中R1代表烷基、卤代烷基、烯基、炔基、可选取代的环烷基、可选取代的环烯基、可选取代的芳基、可选取代的芳基烷基、可选取代的芳基烯基或可选取代的杂环基;R2代表氢、烷基、卤代烷基、烯基、炔基、可选取代的环烷基、可选取代的环烯基、可选取代的芳基、可选取代的芳基烷基、可选取代的芳基烯基或可选取代的杂环基。这些衍生物是通过一种新的方法制备的,该方法包括在无极性、双极溶剂的存在下,在碱的存在下搅拌化合物β-羟乙基-(1,3,4-三唑)的衍生物##STR2##其中R1和R2具有上述含义。