Fig. 1
Synthesis of compounds 1a-d, 2a-d. Reagents and conditions: (a) Potassium carbonate (0.1Â mol), abs. EtOH (100Â ml), reflux, 24Â h. (b) POCl3 (20Â ml), reflux, 3Â h.
Fig. 1 | Scientific Reports
Synthesis of compounds 1a-d, 2a-d. Reagents and conditions: (a) Potassium carbonate (0.1Â mol), abs. EtOH (100Â ml), reflux, 24Â h. (b) POCl3 (20Â ml), reflux, 3Â h.
