Patent · US Expired

Meterocyclic compounds

US4389329A · kind A · utility

10Cited by
9References
24Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 30, 1981
Grant dateJun 21, 1983
Priority date
Expiry dateJan 30, 2001

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC09K19/601
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

Pyrimidine derivatives of the formula ##STR1## wherein at least one of rings A and B is a trans-1,4-disubstituted cyclohexane ring and the other, optionally, may be aromatic and R is straight-chain alkyl or alkoxy of 1 to 10 carbon atoms or a branched-chain alkyl group of the formula C.sub.2 H.sub.5 --CH(CH.sub.3)--(CH.sub.2).sub.n -- wherein n is 1, 2 or 3, are described. Processes for the preparation of the compounds of formula I as well as their uses in liquid crystalline mixtures are also described.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.