Comment 4-Oxyalkyl-substituted benzoic acids are well known and their synthesis from the corresponding 4-hydroxy- benzoic acids is facile. Structurally characterized examples include 4-n-heptyloxybenzoic acid, (2), 4- n-nonyloxybenzoic acid, (3), and 4-n-decyloxybenzoic acid, (4) (Bryan, Hartley, Miller & Shen, 1980). These compounds crystallize in the triclinic space group Pi, with very similar lattice parameters except for the c axis, the length of which varies with the length of the n-alkyl ...
