
Synthetic Communications p. 4179 - 4185 (1999)
Update date:2022-09-26
Topics:
Kim, Sun Hee
Wei, Han-Xun
Willis, Steven
Li, Guigen
A new mild procedure has been developed for the synthesis of cis β- bromostyrene analogs with complete Z/E selectivity and good to excellent yields (58.4 - 90.9 %). The process involves carboxyl-halo-elimination of cinnamic acid dibromides by using triethylamine in N,N-dimethylformamide at room temperature. A one-pot procedure has also been described for the direct transformation of cinnamic acids to β-bromostyrenes.
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