The title compound, C(18)H(30)O(2), was prepared by Friedel-Crafts alkyl-ation of 1,4-dimeth-oxy-benzene with 2-methyl-2-butanol. The complete mol-ecule is generated by the application of a crystallographic centre of inversion. The two meth-oxy groups are oriented in the same plane of the aromatic ring [C-C-O-C torsion angle = 9.14 (16)°]. While one methyl group of the tert-pentyl substituent i...

Dielectric studies were performed for several isothiocyanato-tolane compounds having the F atom attached to the benzene rings at different lateral positions and the alkoxy or alkyl chain at the p-position. They form the nematic phase in broad temperature intervals. The static as well as dynamic properties of the compounds in the nematic and isotropic phases were studied. Tensor permittivity com...

In the title compound, C17H16O3, the benzene rings are twisted by 63.54 (5)°. The twist is similar to that found in the unsubstituted compound, phenyl benzoate. The crystal packing features C-H⋯O hydrogen bonds.

Mixture toxicity of similar- and dissimilar-acting toxicants can be predicted by the models concentration addition (CA) and independent action (IA) using single substance toxicity data. Knowledge of the toxicants mode of action is thus required in order to use the models. In order to test the predictive capability of the models, we conducted Daphnia magna 48 h immobilization experiments with th...

Mixture toxicity of similarand dissimilar-acting toxicants can be predicted by the models concentration addition (CA) and independent action (IA) using single substance toxicity data. Knowledge of the toxicants mode of action is thus required in order to use the models. In order to test the predictive capability of the models, we conducted Daphnia magna 48 h immobilization experiments with thre...

An account of our studies on the metabolic fate of toluene, ethyl-, i8opropyland tert.-butyl-benzenes has been given in earlier papers (Smith, Smithies & Williams, 1954a, b, c; Robinson, Smith & Williams, 1955; Robinson & Williams, 1955). The present paper deals with n-propyland n-butyl-benzenes. These two compounds were previously studied by Thierfelder & Klenk (1924), who showed that npropylb...

The structure of the title compound (4CP4CBA), C(13)H(8)Cl(2)O(2), resembles those of 4-methyl-phenyl 4-chloro-benzoate (4MP4CBA), 4-chloro-phenyl 4-methyl-benzoate (4CP4MBA) and 4-methyl-phenyl 4-methyl-benzoate (4MP4MBA), with similar bond parameters. The dihedral angle between the two benzene rings in 4CP4CBA is 47.98 (7)°, compared with 51.86 (4)° in 4MP4CBA, 63.89 (8)° in 4CP4MBA and 63.57...