Abstract
Abstract Herein, we report an efficient method using transition metal catalysts for controlling atom-transfer radical cyclization elimination (ATRCE) and atom-transfer radical cyclization (ATRC) in the reaction of α-bromocarbonyls possessing a styrene moiety. An iron salt efficiently catalyzed the ATRCE to produce cyclic compounds possessing a C-C double bond. On the other hand, the copper catalyst produced halogenated cyclic compounds.
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