The unexpected reactivity of 1,3-dithiol-2-ylphosphonate esters with 2,3-dichloro-p-benzoquinones: Synthesis and redox properties of novel donor-acceptor systems
摘要:
A new reaction of 1,3-dithiol-2-ylphosphonate esters with chlorosubstituted p-benzoquinones leading to 1,4-dithiin-fused quinones is reported. The electronic spectra and cyclic voltammetry measurements of the novel compounds show a photoinduced intramolecular electron transfer from the donor dithiin fragment to the acceptor quinone moiety.