@article{silva_ferreira_kaiser_pinto_ferreira_2009,  title={Synthesis of α- and β-lapachone derivatives from hetero diels-alder trapping of alkyl and aryl o-quinone methides},  volume={20},  ISSN={0103-5053},  url={https://doi.org/10.1590/S0103-50532009000800014},  DOI={10.1590/S0103-50532009000800014},  number={8},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Silva, Fernando de C. da and Ferreira, Sabrina B. and Kaiser, Carlos R. and Pinto, Angelo C. and Ferreira, Vitor F.},  year={2009},  pages={1478–1482} }