Allenes as building blocks in heterocyclic chemistry

@article{PinhoeMelo2011AllenesAB,
  title={Allenes as building blocks in heterocyclic chemistry},
  author={Teresa M.V.D. Pinho e Melo},
  journal={Monatshefte f{\"u}r Chemie - Chemical Monthly},
  year={2011},
  volume={142},
  pages={681-697}
}
Allenes have a unique structural feature characterized by having two cumulated double bonds. The inherent instability associated with these 1,2-dienes has been widely exploited for various synthetic purposes. Allenes have thus become important and versatile building blocks in organic chemistry. In this paper some illustrative examples of the chemistry of these building blocks in the synthesis of heterocyclic compounds are presented.Graphical abstract 
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