Thione photochemistry: Abstraction and cyclization at the β-position of aralkyl thiones from two excited states

Article abstract of DOI:10.1021/jo00323a008

Excitation of a series of β-substituted aralkyl thiones either to the S₂ (π,π*) state or to the S₁ (n,π*) state leads to a formal insertion into the β-position and the formation of cyclopropyl thiols. The mechanisms of intramolecular