Multi-step reaction with 4 steps
1: 1.) oxalyl chloride, dimethyl sulfoxide, 3.) triethylamine / 1.) CH2Cl2, -60 deg C, 2 min, 2.) CH2Cl2, 15 min, 3.) CH2Cl2, -60 deg C, 5 min
2: 1.) n-butyllithium / 1.) THF, hexane, 20 deg C, 1 h, 2.) THF, hexane, 20 deg C, 18 h
3: 96 percent / hydrogen / 5percent palladium on carbon / ethanol / 18 h / 20 °C
4: 1.) potassiun, tert-butyl alcohol, ammonia / 1.) THF, -78 deg C, 2.) THF, -78 deg C, 1 h
With
n-butyllithium; oxalyl dichloride; ammonia; hydrogen; potassium; dimethyl sulfoxide; triethylamine; tert-butyl alcohol;
palladium on activated charcoal;
In
ethanol;
DOI:10.1021/ja00231a038