tert-Butylglycolic acid

Abstract

Comment tert-Butylglycolic acid was prepared as a chelating molecule bearing the sterically demanding tert-butyl group as a substituent. In order to estimate the influence of chelation on structural parameters of the chelating molecule, the structure of the parent compound was investigated.

Crystal structure of 2-hydroxy-2-methyl-2-phenyl acetic acid hemihydrate, C9H11O3.50

“…The crystal structures of benzilic acid [1] and 2-cyclopentyl-2-hydroxy-2-phenylacetic acid [2] are apparent in the literature. In addition, the crystal structures of several other simple aliphatic α-hydroxycarboxylic acids have been published by one of us earlier [3][4][5][6][7]. The title compound is a derivative of lactic acid bearing a phenyl group on the asymmetric carbon atom.…”

The crystal structure of 5-carboxy-2-(hydroxymethyl)-1H-imidazol-3-ium-4-carboxylate, C6H8N2O6

“…One such example are imidazole-dicarboxylic acids that can be synthesized according to a published procedure [7]. In continuation of our studies of the structures of polyfunctional carboxylic acids [9][10][11][12][13][14][15] the title compound was synthesized. To ensure the successful generation of the desired compound, the molecular and crystal structure of the latter was determined.…”

The crystal structure of 3-chloropropionic acid, C3H5ClO2

“…An even stronger increase in melting point is observed for the introduction of the first terminal chlorine atom in propionic acid with a change from −21 to 41°C. In continuation of our interest in the structures of functionalized carboxylic acids [8][9][10][11][12][13][14][15], the crystal and molecular structure of the title compound was determined to gain an understanding for this drastic change in physical properties. The structure of propionic acid has been reported earlier [16].…”