AROMATIC DIAMINE, AN INTERMEDIATE THEREFOR, A METHOD FOR PRODUCING THE AROMATIC DIAMINE, AND A METHOD FOR PRODUCING THE INTERMEDIATE THEREFOR

摘要

An asymmetric diamine suitable for preparing a soluble polyimide and a method for preparing the same, including a compound represented by the following formula (1):; ;wherein R¹, R², R³ and R⁴ are, independently of each other, a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or an alkoxy group having 1 to 3 carbon atoms, and A and B are, independently of each other, a nitro group or an amino group. Further, a method for preparing the compound represented by the aforesaid formula (1).