Electrochemical Bromo-Alkyloxylation of Conjugated Alkenes: A Method to Access Bromo-Alkyloxy-Alkenes/Alkynes.

A highly efficient bromo-alkyloxylation of conjugated alkenes through direct electrolysis under mild reaction conditions has been developed. This protocol provides an efficient approach to a series of bromo-alkyloxy-alkenes/alkynes bearing various functional groups, achieving moderate to high yields. Mechanistic studies revealed that the charge and ionization effects induce the high selectivity observed in the reaction of 1,3-dienes and 1,3-enynes.