Bubel, O. N.; Bezborodov, V. S.; Ptashnikov, Yu. L. published the artcile< Synthesis of mesomorphic derivatives of p-aminobenzoic acid>, Synthetic Route of 16426-64-5, the main research area is Schiff base aminobenzoate mesomorphic; liquid crystal aminobenzoate Schiff base.
4-HOC6H4CHO was etherified with RX (R = Me, EtCHMeCH2, m-C5H11, n-C10H21; X = Br, iodo) to give 85-90% 4-ROC6H4CHO, which condensed with 2,4-R1(H2N)C6H3CO2R2 (R1 = H, Cl, Br; R2 = H, EtCHMeCH2, n-C5H11) to give 11 mesomorphic 4-ROC6H4CH:NC6H3(CO2R2)R1-4,3 (I). I (R = R2 = EtCHMeCH2, R1 = H) exists as a mixture of the crystalline and isotropic phases; the other I also exists as smectic liquid-crystalline A or C phases or as nematic liquid crystals.
Zhurnal Organicheskoi Khimii published new progress about Liquid crystals. 16426-64-5 belongs to class bromides-buliding-blocks, and the molecular formula is C7H4BrNO4, Synthetic Route of 16426-64-5.
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary