Unexpected metal-free transformation of gem-Dibromomethylenes to ketones under acetylation conditions.

  title={Unexpected metal-free transformation of gem-Dibromomethylenes to ketones under acetylation conditions.},
  author={Rino Kimura and Yusuke Sawayama and Atsuo Nakazaki and Kazunori Miyamoto and Masanobu Uchiyama and Toshio Nishikawa},
  journal={Chemistry, an Asian journal},
  volume={10 4},
Novel conditions for the transformation of gem-dibromomethylenes to ketones are described. gem-Dibromo compounds were treated with acetic anhydride and triethylamine in dichloromethane/water at room temperature under an air atmosphere to give the corresponding ketones in moderate yields. A radical mechanism is proposed based on experimental results. 
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