申请人:CASTROL LIMITED
公开号:EP0164471A2
公开(公告)日:1985-12-18
Benzothiazoline derivatives having the general formula:
wherein R, and R2 may be a hydrogen atom, a hydrocarbyl group, a substituted hydrocarbyl group, an amino group or a halogen atom, a hydroxyl group, alkoxy or aryloxy group, or R, and R2 together may form a cyclic group which may optionally contain a heterocyclic atom; R3 is a hydrogen atom or a hydrocarbyl group; X may be hydrocarbyl, substituted hydrocarbyl, halogen, hydroxyl, carboxyl, amino or amido two X's may be taken together to form a polycyclic compound which may be substituted in line manner; n = 0 or 1-4 are useful as antioxidants for compounds subject to oxidative degradation. The compounds are prepared by reacting an appropriate o-aminothiophenol with a suitable carbonyl compound.
具有通式的苯并噻唑啉衍生物:
其中 R 和 R2 可以是氢原子、烃基、取代的烃基、氨基或卤素原子、羟基、烷氧基或芳氧基,或 R 和 R2 可共同形成一个环状基团,该环状基团可任选含有一个杂环原子;R3 是氢原子或烃基;X 可以是烃基、取代的烃基、卤素、羟基、羧基、氨基或酰胺基;两个 X 可以组合在一起形成一个多环化合物,该化合物可以用线的方式进行取代;n = 0 或 1-4 可用作易氧化降解化合物的抗氧化剂。这些化合物是通过适当的邻氨基苯硫酚与适当的羰基化合物反应制备的。