Reaktionen an nickel(II)koordinierten N-Acylthioharnstoffen mit Säurechloriden: ein einfacher zugang für neue Thioharnstoff-derivate

Aqueous solubilities of five N-(diethylaminothiocarbonyl)benzimido derivatives at T = 298.15 K

N-(diethylaminothiocarbonyl)benzimido derivatives are polar multifunctional substances. A set of these compounds was synthesised by successive substitution on the enamine side, resulting in similar substances with different polarities, providing a set of model compounds with respect to the study of substituent effects on physico-chemical properties. Experimental aqueous solubility data, at T = 298.15 K, of N-(diethylaminothiocarbonyl)benzamidine, PhCNH2NCSNEt2 (1),N-(diethylaminothiocarbonyl)-N'-phenylbenzamidine, PhCNHPhNCSNEt2 (2), N-(diethylaminothiocarbonyl)-N'-monoethylbenzamidine, PhCNHEtNCSNEt2 (3), N-(diethylaminothiocarbonyl)-N',N'-diethylbenzamidine, PhCNEt2NCSNEt2 (4), and N-(diethylaminothiocarbonyl)benzimido ethylester, PhCOEtNCSNEt2 (5) were measured at T = 298.15 K. The obtained data are supplemented by COSMO-RS aqueous solubility predictions as well as other environmentally important partition coefficients. This information is shown in a two-dimensional chemical space diagram, providing indications about the compartment into which the bulk of the compounds is likely to concentrate. The expected quality of COSMO-RS predictions for this type of screening exercise is illustrated on a set of pesticides with established thermophysical property data.

Nickel(ii) and copper(ii) complexes constructed with N2S2 hybrid benzamidine–thiosemicarbazone ligand: synthesis, X-ray crystal structure, DFT, kinetico-catalytic and in vitro biological applications

We report nickel(ii) and copper(ii) complexes containing the benzamidine–thiosemicarbazone ligand together with DFT, enzyme kinetics and in vitro biological applications such as DNA/BSA affinities and anticancer properties.

A second monoclinic polymorph of N-(diethyl-amino-thio-carbon-yl)-N'-phenyl-benzamidine

The asymmetric unit of the title compound, C₁₈H₂₁N₃S, contains five mol­ecules. The equivalent bond distances in the five mol­ecules are in excellent agreement, the r.m.s. fit being within 0.007 Å. The five mol­ecules are linked into a chain consisting of alternating pseudo-enanti­omers by N—H⋯S hydrogen bonds supplemented by weak C—H⋯π inter­actions. The action of a glide plane links the asymmetric unit into an extended chain. A polymorph of the title compound with one mol­ecule in the asymmetric unit was reported by Braun et al. [Cryst. Res. Technol. (1988), 23, 35–39].