Acid mediated intramolecular cyclization of π-donors bearing two vicinal "cis"-branched, 1,4-dithiafulven-6-yl substituents on a C=C bond

Article abstract of DOI:10.1016/S0040-4039(00)60363-5

Cis-ethylenic analogues 1 and ortho-benzenic analogues 2 of TTF undergo a rapid acid mediated intrmolecular cyclization into two the corresponding cycloisomers 1′ and 2′ whose structures are confirmed by X-ray diffraction; as shown by cyclic Voltammetry,