Electrochemical synthesis of phthalides via anodic activation of aromatic carboxylic acids.

A novel electrochemical synthesis of phthalides was successfully developed using anodically generated aroyloxy radicals in combination with aliphatic carboxylic acid as cheap and readily available alkylating agent precursors.

Molecular Oligogermanes and Related Compounds: Structure, Optical and Semiconductor Properties.

The optical (UV/Vis absorbance, fluorescence in the solid state and in solution) and semiconducting properties of a number of di- and trigermanes as well as related silicon- and tin-containing germanes, 1-6 ((p-Tol)3 GeGeMe3 (1), Ph3 SnGe(SiMe3 )3 (2), (C6 F5 )3 GeGePh3 (3), (p-Tol)3 GeSiMe2 SiMe3 (4), (p-Tol)3 GeGeMe2 Ge(p-Tol)3 (5), (p-Tol)3 GeSiMe2 SiMe2 Ge(p-Tol)3 (6)) were investigated. Molecular structures of 5 and 6 were studied by X-ray diffraction analysis. All compounds displayed luminescence properties. In addition, a band gap (of about 3.3 eV) was measured for compounds 1-6 showing that those molecules display semiconductor properties.