Cycloaddition reactions of polyenic donor-π-acceptor systems with an electron-rich alkyne: access to new chromophores with second-order optical nonlinearities.

@article{Galan2012CycloadditionRO,
  title={Cycloaddition reactions of polyenic donor-π-acceptor systems with an electron-rich alkyne: access to new chromophores with second-order optical nonlinearities.},
  author={Elena M Galan and Raquel Andreu and Javier Gar{\'i}n and Jes{\'u}s Orduna and Bel{\'e}n Villacampa and Beatriz E Diosdado},
  journal={Organic & biomolecular chemistry},
  year={2012},
  volume={10 43},
  pages={8684-91}
}
The formal [2 + 2] cycloaddition-cycloreversion (CA-CR) between 4-ethynyl-N,N-dimethylaniline and polyenic Donor-π-Acceptor (D-π-A) systems takes place to yield compounds bearing two donors and one acceptor. Structural, linear and second-order nonlinear optical (NLO) properties of the new molecules reveal the stronger polarization of these systems when… CONTINUE READING

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