Electrochemical behaviour of seleno-organic compounds: Part 5. [2H] Benziso-1,2-selenazol-3-one, [3H] benzo-2,1-thiaselenol-3-one and [3H] benzo-1,2-dithiol-3-one
Résumé
The electrochemical behaviour of [2H] benziso-1,2-selenazol-3-one (2b) in non aqueous media was studied using a platinum electrode. The corresponding Se-monoxide 3 was isolated and characterised. Comparison with [2H] benziso-1,2-thiazol-3-one (2a), [3H] benzo-1,2-dithiol-3-one (4a) and [3H] benzo-2,1-thioselenol-3-one (4b) was performed. In the case of compounds 2a,b the impact of the availability of the lone pair of the nitrogen atoms adjacent to the selenium atom on the electrochemical behaviour is discussed.