Scheme 5.

Proposed mechanism for product formation from 5+• . Framed structures represent the observed reaction products deriving from Cα‐Cβ (red) and Cα‐S bond cleavage (blue).

Proposed mechanism for product formation from 5+• . Framed structures represent the observed reaction products deriving from Cα‐Cβ (red) and Cα‐S bond cleavage (blue).