Chiral substituted tartarimides

Details Chiral substituted tartarimides Chiral substituted tartarimides

1989-06-28

1991-02-26

Springer, David B.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548547, C07D207416

Patent

active

049963309

ABSTRACT:
Chiral substituted tartarimides, a process for their preparation and their use as doping agents in liquid-crystal mixtures.
The new chiral N-substituted tartarimides which are esterified on both of the OH groups (pyrrolidinediones) are characterized by the general formula (I) ##STR1## in which the symbols have the following meaning: R.sup.2 denotes linear or branched (C.sub.1 -C.sub.16)-alkyl, it being possible for one or two non-adjacent CH.sub.2 groups to be replaced by O or S, or, if n1=1, also denotes F, Cl, Br or CN,

REFERENCES:
patent: 4237022 (1980-12-01), Barrer

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