Tandem chalcone-sulfonamide hybridization, cyclization and further Claisen–Schmidt condensation: Tuning molecular diversity through reaction time and order and catalyst oleh Mirian R.C. de Castro, Raquel Ferreira Naves, Aline Bernardes, Cameron Capeletti da Silva, Caridad Noda Perez, Andrea Felinto Moura, Manoel Odorico de Moraes, Felipe Terra Martins