Abstract
In this communication, we established highly efficient Cu-catalyzed ARGET-ATRS (atom-transfer radical substitution) of alpha-bromocarbonyls with styrenes to produce tert-alkylated styrenes. The maximum TON was up to 12 000. Hünig's base was very important to regenerate active CuI. Moreover, a Cu-catalyzed C-C cleavage reaction via SH2' and intermolecular C-H cyclization of α-bromoimide was found.
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