Process for preparing 5-aminodihydropyrrole, intermediate thereof and process for preparing said intermediate
申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
公开号:EP0663394A1
公开(公告)日:1995-07-19
A 5-aminodihydropyrrole of the formula (1):
in which R¹ and R² independently represent a hydrogen atom, a lower alkyl group or a lower haloalkyl group, or together form a C₂-C₁₀ alkylene group optionally substituted with a halogen by reducing an oxidepyrrole of the formula (2):
in which R¹ and R² are the same as defined above, with hydrogen in the presence of a catalyst.
式 (1) 的 5-氨基二氢吡咯:
其中 R¹ 和 R² 各自代表一个氢原子、一个低级烷基或一个低级卤代烷基,或通过还原式(2)的氧化吡咯共同形成一个任选被卤素取代的 C₂-C₁₀亚烷基:
其中 R¹ 和 R² 与上文所定义的相同,在催化剂存在下用氢还原。