1: 71.3 percent / NaH / dimethylsulfoxide; tetrahydrofuran 2: 1.) (CH3COO)2Cu*H2O, 2.) S2Cl2 / 1.) MeOH, heating, 2.) CHCl3, CH2Cl2, 0 deg C, 1 h; 0 to 20 deg C, 60 min View Scheme

1: 71.3 percent / NaH / dimethylsulfoxide; tetrahydrofuran 2: 1.) (CH3COO)2Cu*H2O, 2.) S2Cl2 / 1.) MeOH, heating, 2.) CHCl3, CH2Cl2, 0 deg C, 1 h; 0 to 20 deg C, 60 min View Scheme

disulfur dichloride; copper diacetate 1.) MeOH, 2.) MeOH, CHCl3, 0 - 30 deg C; Multistep reaction;