Radical Additions of Activated Haloalkanes to Alkenes Initiated by Electron Transfer from Copper in Solvent‐Free Systems

Ecologically sound chemistry relies on the development of new, environmentally friendly synthetic methods in which few toxic substances are used. Copper powder was found to be a suitable initiator for the addition in Equation (a) (R1, R2 = H, alkyl, (CH2)nCOOMe). This initiator is not only cheap but also nontoxic, easily removed, and readily recyclable.