Mechanism of the Reaction of Tri-n-butylstannyl Anion with n-Butyl Bromide and Iodide As Studied by the <SUP>119</SUP>Sn CIDNP Technique

The mechanism of the reaction of the tri-n-butylstannyl anion with n-butyl bromide and iodide in THF was studied by the chemically induced dynamic nuclear polarization (CIDNP) technique. Strong ¹¹⁹Sn CIDNP spectra were observed for the first time. The emissive CIDNP phase of the tetra-n-butylstannane proves that radical intermediates are involved in the present reactions.