1 4 Benzenedicarboxyhc acid

Phthalamic acid N N diethyl-, methyl ester [Benzoic acid, 2 (/V, JV-diethyl aminocarbonyl)-, methyl ester), 63 Phthalicacid [1,2 Benzenedicarboxyhc acid], 86... 

The simplest aromatic carboxylic acid is benzoic acid. Derivatives are named by using numbers and prefixes to show the presence and location of substituents relative to the carboxyl group. Certain aromatic carboxylic acids have common names by which they are more usually known. For example, 2-hydroxybenzoic acid is more often called salicylic acid, a name derived from the fact that this aromatic carboxylic acid was finst obtained from the bark of the willow, a tree of the genus SaEx. Aromatic dicarboxylic acids are named by adding the words dicarboxylic acid to benzene. Examples are 1,2-benzenedicarboxyhc acid and 1,4-benzenedicar-boxylic acid. Each is more usually known by its common name phthahc acid and terephthalic acid, respectively. Terephthahc acid is one of the two organic components required for the synthesis of the textile fiber known as Dacron polyester (Section 16.4B). 

James et al have investigated the mechanochemical preparation of MOF by grinding 1,4-benzenedicarboxyhc acid (H2bdc) with ZnO or basic zinc carbonate [ZnC03]2-[Zn(OH)2]3 in a ball mill for 20 min, in the presence of a small amount of liquid the nature of the liquid determined the product [Zn(bdc)(H20>2] was obtained with water, [Zn(bdc)(H20)]DMF with DMF (dimethylformamide), and [Zn(bdc)(H20)] with methanol (Figure 5). These structures also show a different connectivity and they form one-, two-, and three-dimensional networks, respectively. Solid-state and NMR also confirmed the syntheses to be quantitative. 

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