VENKATARAMANA, R.; CHITTIREDDY, V. R. R.; ASHOK, D.; RAO, K. K. Microwave-assisted synthesis of 2,8-di(alkyl/aryl)-4,6-dichloro-2H,8H-pyrano[3,2-g]chromene-3,7-dicarbaldehydes and their antimicrobial activity. Journal of the Serbian Chemical Society, Belgrade, Serbia, v. 84, n. 4, p. 355–364, 2019. DOI: 10.2298/JSC180127011V. Disponível em: https://www.shd-pub.org.rs/index.php/JSCS/article/view/6454. Acesso em: 27 nov. 2022.