Asymmetric organocatalysis: an efficient enantioselective access to benzopyranes and chromenes.

@article{Rueping2008AsymmetricOA,
  title={Asymmetric organocatalysis: an efficient enantioselective access to benzopyranes and chromenes.},
  author={Magnus Rueping and Erli Sugiono and Est{\'i}baliz Merino},
  journal={Chemistry},
  year={2008},
  volume={14 21},
  pages={
          6329-32
        }
}
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