申请人:ROHM AND HAAS COMPANY
公开号:EP0539091A1
公开(公告)日:1993-04-28
Compounds of the formula I
where
R₁ is hydrogen or halogen;
R₂ is hydrogen or halogen;
X is selected from the group consisting of
(i) (C₂-C₂₀)alkyl, optionally substituted with one or more (C₁-C₄) alkyl groups, optionally containing oxygen heteroatoms or carbonyl groups, or or (C₂-C₂₀) straight chain alkylene, optionally substituted with one or more (C₁-C₄) alkyl groups; or
(ii)
where n is 0 to 4, and the aromatic group is optionally substituted by one or more (C₁-C₄)alkyl, nitro, halo, cyano, or methoxy groups are prepared by simultaneous cyclization of the two mercaptopropionamide groups of a bis-amide of the formula (NHCOCH₂CH₂SH)₂ .
式 I 的化合物
其中
R₁ 是氢或卤素;
R₂ 是氢或卤素;
X 选自以下组成的组
(i) (C₂-C₂₀)烷基,任选被一个或多个(C₁-C₄)烷基取代,任选含有氧杂原子或羰基,或 (C₂-C₂₀)直链亚烷基,任选被一个或多个(C₁-C₄)烷基取代;或
(ii)
其中 n 为 0 至 4,且芳香基团任选被一个或多个(C₁-C₄)烷基、硝基、卤代、氰基或甲氧基取代的芳香基团是通过式 (NHCOCH₂CH₂SH)₂ 的双酰胺的两个巯基丙酰胺基团同时环化制备的。