@article{kamboj_berar_berar_siddiqui_gupta_2010,  title={Photochemistry of 3-alkoxychromones: photocyclisation of 2-aryl-6-chloro-3-{(thiophen-2-yl)methoxy}chromones},  volume={21},  ISSN={0103-5053},  url={https://doi.org/10.1590/S0103-50532010000200012},  DOI={10.1590/S0103-50532010000200012},  number={2},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Kamboj, Ramesh C. and Berar, Urmila and Berar, Surinder and Siddiqui, Zeba N. and Gupta, Satish C.},  year={2010},  pages={270–278} }