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Die mono‐ und die didemethylierten Derivate (XIb) (Nor‐xanthyletin) und (XIc) (Homopsoralen) bzw. (XIVb) (Nor‐seselin) und (XIVc) (Homoangelicin) von Xanthyletin (XIa) bzw. Seselin (XIVa) werden über die Cyclokondensationsprodukte (IIIb) und (IIIc) (aus dem Nitril (IVa) über die Stufen (IVb)‐(VI) erhalten) bzw. (VHIb) und (VIIIc) des Aldehyds (II) dargestellt.

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In this study we investigated the electrocatalytic oxidation of saccharose on conductive polymer-Nickel oxide modified graphite electrodes based on the ability of anionic surfactants to form micelles in aqueous media. This NiO modified electrode showed higher electrocatalytic activity than Ni rode electrode in electrocatalytic oxidation of saccharose. The anodic peak currents show linear dependency with the square root of scan rate. This behavior is the characteristic of a diffusion controlled process. Under the CA regime the reaction followed a Cottrellian behavior and the diffusion coefficient of saccharose was found in agreement with the values obtained from CV measurements.

One-Pot Synthesis of Selenocarbamates from Isocyanates and Diselenides Using the Zn/AlCl3System. -The process is advantageous with regards to operational simplicity, mild conditions and high reaction rate. - (MOVASSAGH*, B.; MORADI, M.; Chin. Chem. Lett. 24 (2013) 3, 192-194, http://dx.