2,2'-difluoro-4-alkoxy-4'-hydroxydiphenyls and their derivatives

2,3-dicyano-5-substituted pyrazines

2,3-difluorobenzene derivatives

2,3-difluorobiphenyls

2,3-difluorohydroquinone derivatives

2,3-difluorophenol derivatives

2,4-Difluorobenzene derivatives

2,5-diphenyl pyrimidine compounds and liquid crystal composition

2,5-diphenylpyrimidine compound

2,5-disubstituted heterocycle and liquid-crystalline phase

2,5-disubstituted heterocyclic compounds, and a liquid-crystalli

2-(4'-alkoxyphenyl)-5-alkylpyridines

2-(4,3-Disubstituted phenyl)-5-alkyl-1,3,2-dioxaborinane derivat

2-(alkyloxycarbonyloxyphenyl)-5-alkylpyridine and composition co

2-(trans-4-alkylcyclohexyl)-5-alkoxypyrimidines

2-Aryloxytetrafluoropropionic esters, process for their preparat

2-fluorobenzonitrile derivative

2-fluoroperfluoroalkylcyclohexene derivatives

2-fluoropyrazines process for their preparation, and their use i

2-Fluoropyridines, their preparation and their use in liquid cry