Multi-step reaction with 10 steps
1: oxalyl chloride, DMF / CH2Cl2 / 0.5 h / Ambient temperature
2: N,N-dimethylaniline / CH2Cl2 / 1.) room temperature, 30 min, 2.) reflux, 15 min
3: sulfuryl chloride / CH2Cl2 / 0.25 h
4: AcONa / 1 h / 75 °C
5: 85.5 percent / p-TsOH / CH2Cl2 / 2 h
6: 86 percent / stannic chloride / CH2Cl2 / 1.5 h / 0 °C
7: 83 percent / NaHCO3, I, KI / CH2Cl2; H2O / 0.33 h
8: 1.) stannic chloride, 2.) p-TsOH*H2O, AgOAc / 1.) CH2Cl2, 20 min, 2.) THF, 10 h
9: AcOH, Zn / 0.33 h
10: trifluoroacetic acid / 7 h / Ambient temperature
With
sulfuryl dichloride; oxalyl dichloride; silver(I) acetate; sodium acetate; tin(IV) chloride; sodium hydrogencarbonate; toluene-4-sulfonic acid; acetic acid; N,N-dimethyl-aniline; N,N-dimethyl-formamide; trifluoroacetic acid; potassium iodide; zinc;
In
dichloromethane; water;