Effets de la Substitution Captodative XXX1. Addition Des Radicaux Dérivés de Cétones, D'Aldéhydes et de Formiates À L'α-Tert-Butylthioacrylonitrile2

Oxydation of ketones, aldehydes and formiates in the presence of radicophilic olefin α-tert-butylthioacrylonitrile 3 with captodative (cd) substitution does not give the usual radical decay products: The radical adducts dimerize, thus building a four carbon-bridge between the original radicals R°.