| 摘要 |
NEW MATERIAL:A pyrimidinyl 4'-(2-methylbutyl)-4-biphenylcarboxylate expres sed by formula I (R is 1-18C alkyl; the asterisk represents asymmetric carbon atom). USE:A chiral smectic liquid crystal compound. PREPARATION:An optically active 4'-(2-methylbutyl)-4-biphenylcarboxylic acid (formula II) or a reactive derivative thereof is esterified with a 5-alkyl-2- pyrimidinol expressed by formula III in the presence of a condensing agent, e.g. sulfuric acid, boric acid or N,N'-dicyclohexylcarbodiimide, to afford the aimed compound expressed by formula I.
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