@article{kascheres_2003,  title={The chemistry of enaminones, diazocarbonyls and small rings: our contribution},  volume={14},  ISSN={0103-5053},  url={https://doi.org/10.1590/S0103-50532003000600012},  DOI={10.1590/S0103-50532003000600012},  number={6},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Kascheres, Concetta Montanile},  year={2003},  month={Nov},  pages={945–969} }