申请人:SHELL INTERNATIONALE RESEARCH
MAATSCHAPPIJ B.V.
公开号:EP0647635A1
公开(公告)日:1995-04-12
A compound of the general formula
wherein A represents an optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, aryl, heteroaryl or aralkyl group, or a group of general formula X-Y-(CH₂)n- where X represents an optionally substituted alkyl or aryl group, n represents 1 or 2, and Y represents an oxygen atom or a group of general formula -S(O)m- where m represents 0, 1 or 2; R¹ represents a hydrogen atom or an alkyl group; and R² represents a hydrogen atom or an optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, aryl, heteroaryl, aralkyl or heteroaralkyl group.
Also disclosed are preparative processes, and novel intermediates.
通式如下的化合物
其中 A 代表任选取代的烷基、烯基、炔基、环烷基、芳基、杂芳基或芳烷基,或通式 X-Y-(CH₂)n-的基团,其中 X 代表任选取代的烷基或芳基,n 代表 1 或 2,Y 代表氧原子或通式-S(O)m-的基团,其中 m 代表 0、1 或 2;R¹代表氢原子或烷基;R²代表氢原子或任选取代的烷基、烯基、炔基、环烷基、芳基、杂芳基、芳烷基或杂烷基。
还公开了制备工艺和新型中间体。