1: 61 percent / mol. sieves / (Allyl-PdCl)2 / tetrahydrofuran 2: 84 percent / HCl / ethanol 3: 85 percent / K2CO3 / dimethylformamide 4: HBr 5: tetrahydrofuran View Scheme

1: 61 percent / mol. sieves / (Allyl-PdCl)2 / tetrahydrofuran 2: 84 percent / HCl / ethanol 3: 85 percent / K2CO3 / dimethylformamide 4: HBr 5: tetrahydrofuran View Scheme

1: 84 percent / HCl / ethanol 2: 85 percent / K2CO3 / dimethylformamide 3: HBr 4: tetrahydrofuran View Scheme

in tetrahydrofuran Cyclization;