Diamine compounds, which in particular are useful as precursors for the production of liquid crystal alignment layers, represented by general formula (I), wherein A
1
represents an organic group of 1 to 40 carbon atoms; A
2
represents a hydrogen atom or an organic group of 1 to 40 carbon atoms.
Diamine compounds, which in particular are useful as precursors for the production of liquid crystal alignment layers, are represented by the general formula I:
wherein
A
1
represents an organic group of 1 to 40 carbon atoms;
A
2
represents a hydrogen atom or an organic group of 1 to 40 carbon atoms.