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A novel, convenient and economical method was developed for the anodic thiocyanation of nitrogen-containing aromatic and heteroaromatic compounds by constant potential electrolysis of potassium thiocyanate in an undivided cell under mild condition (25°C, Pt anode, CH3CN) with yields up to 91%. The products were characterized by spectroscopic methods and a mechanism was deduced from voltammetry studies. The salient features of proposed procedure ensures mild reaction conditions, shortest reaction time, accelerated rate, high yield, cost-effectiveness, selectivity, and simple work up procedure, Which provide additional advantages in the context of green chemistry. [ABSTRACT FROM AUTHOR]

Clean, practical, and efficient electrochemical synthesis of pharmaceutically relevant 4H-pyran derivatives by one-pot three-component combination of an aryl aldehyde, malononitrile, and a dicarbonyl compoundis developed. The synthesis is performed in ethanol with lithium perchlorate as a supporting electrolyte in an undivided cell on a platinum electrode under constant potential electrolysis conditions. [ABSTRACT FROM AUTHOR]