New mesogenic homologous series with broken alkoxy chain, butoxy ethyl 4(4’-n-alkoxybenzoyloxybenzylidene) 4’-aminobenzoates has been synthesized by condensing an appropriate 4-n-alkoxy benzyloxy benzaldehyde with butoxy ethyl 4-amino benzoate. The synthesized compounds were characterized by combination of elemental analysis and standard spectroscopic methods. Methoxy derivative is purely nematogenic. Ethoxy to n-hexyloxy derivatives exhibit enantiotropic smetic-A as well as nematic mesophases. n-heptyloxy to n-hexadecyloxy derivatives exhibit enantiotropic smatic-A mesophase. The thermal stabilities and the commencement of smectic phase of those of other structurally related series.