THERMAL AND PHOTOCHEMICAL REACTIONS OF 1,4-DITHIINE AND DERIVATIVES

Article abstract of DOI:10.1016/S0040-4039(00)87421-3

Thermally, dithiines may react as dienophiles in <2+4>-cycloadditions.Photochemically, they afford <2+2>-cyclodimerization products in the absence of oxygen; in its presence, they are degraded to CO2 and H2S among other photooxidation products.CT-complexes occur with tetracyanoethylene, maleic anhydrides and acetylenes, but no stable products are formed, neither thermally nor photochemically.