Diamino compounds, dinitro compounds, diol compounds and a proce

Details Diamino compounds, dinitro compounds, diol compounds and a proce Diamino compounds, dinitro compounds, diol compounds and a proce

1989-11-08

1991-04-16

Hollrah, Glennon H.

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

2522994, 564417, 564418, 564423, 568721, 568931, C07C21100

Patent

active

050084569

ABSTRACT:
Diamino compounds, dinitro compounds, diol compounds and a process for preparing the diamino compounds which are useful as materials of poly-imide compounds for obtaining aligning films having high pretilt angles in liquid crystal display elements are provided.
The diamino compounds are represented by the general formula: ##STR1## wherein R.sub.1 -R.sub.6 are a hydrogen atom or an alkyl group having 1 to 22 carbon atoms, respectively, and R.sub.7 -R.sub.12 are a hydrogen atom, an alkyl group having 1 to 3 carbon atoms, F or Cl respectively.

REFERENCES:
patent: 3247199 (1966-04-01), Marxer et al.
Chemical Abstracts, vol. 111 (16): 144258y (1989).

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