申请人:HOECHST UK LIMITED
公开号:EP0127847A1
公开(公告)日:1984-12-12
A process for the preparation of a compound of the general formula I
is described according to which a compound of the general formula IIb
is reacted with a compound of formula III
in which
L represents a leaving group, generally carrying out the reaction in the presence of a base.
R' represents an alkylene, alkenylene or alkynylene group, having from 1 to 4 carbon atoms, and
R2 represents a heterocyclic group having a five-membered or 6-membered ring with 1 to 4 heteroatoms, selected from oxygen sulfur and nitrogen, and being linked to the adjacent sulphur atom via a ring carbon atom.
通式 I 化合物的制备工艺
的制备方法,根据该方法,通式 IIb 的化合物
与通式 III 的化合物反应
其中
L 代表离去基团,通常在碱存在下进行反应。
R' 代表具有 1 至 4 个碳原子的亚烷基、亚烯基或亚炔基,以及
R2 代表杂环基团,具有 1 至 4 个杂质原子的五元环或六元环,这些杂质原子可选 自氧、硫和氮,并通过环上的碳原子与相邻的硫原子相连。