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1 The study of reaction conditions Table S1 The optimization of the rate of copper slats and ligand a) Entry Anion Cu/ligand Yield b)(%) 1 2 3 OTf OTf OTf 10%:20% 10%:10% 5%:10% 91 65 45 a) Reaction conditions: 1a(0.60 mmol), 2a(0.20 mmol), Cu(OTf)2(x mol%), K2CO3(2.5 equiv.), 1,10-phenanthroline(y mol%), DMSO(2 mL), 150 °C, 24 h; b) isolated yields. Table S2 The optimization of the substrates’ rate a) Entry 1a/2a(mmol) Yield b)(%) 1 2 3 4 5 6 0.2:0.2 0.2:0.24 0.2:0.4 0.6:0.2 0.4:0.2 1.0:0.2 54 60 58 91 73 83 a) Reaction conditions: 1a(x mmol), 2a(y mmol), Cu(OTf)2(10 mol%), K2CO3(2.5 equiv.), 1,10-phenanthroline(20 mol%), DMSO(2 mL), 150 °C, 24 h; b) isolated yields.
1 The study of reaction conditions Table S1 The optimization of the rate of copper slats and ligand a) Entry Anion Cu / ligand Yield b) (%) 1 2 3 OTf OTf OTf 10%: 20% 10%: 10% 5% 10% 91 65 45 a) Reaction conditions: 1a (0.60 mmol), 2a (0.20 mmol), Cu (OTf) 2 x mol%, K2CO3 2.5 equiv., 1,10-phenanthroline (y mol% , DMSO (2 mL) at 150 ° C for 24 h; b) isolated yields. Table S2 The optimization of the substrates’ rate a) Entry 1a / 2a (mmol) Yield b) (%) 1 2 3 4 5 6 0.2 : 0.2 0.2: 0.24 0.2: 0.4 0.6: 0.2 0.4: 0.2 1.0: 0.2 54 60 58 91 73 83 a) Reaction conditions: 1a (x mmol), 2a (y mmol), Cu , K2CO3 (2.5 equiv.), 1,10-phenanthroline (20 mol%), DMSO (2 mL) at 150 ° C for 24 h; b) isolated yields