Multi-step reaction with 7 steps
1: 85 percent / Et3N, (Ph3P)2PdCl2, CuI / acetonitrile / 3.5 h / 0 - 20 °C
2: 94.5 percent / H2 / 10percent Pd/C / methanol / 2585.7 Torr
3: 71 percent / Ph3PMe(1+)*I(1-) / acetonitrile / 12 h / 0 - 20 °C
4: 85.9 percent / aq. LiOH / methanol / 18 h / Ambient temperature
5: 1.) NaH / 1.) DMF, 5 deg C, 30 min, 2.) DMF, a) 5 deg C, 1.5 h, b) RT, 5 h
6: 1.) HOBt, DCC, 2.) N-methylmorpholine / 1.) CH2Cl2, dimethylacetamide, 0 deg C, 1.5 h, 2.) CH2Cl2, dimethylacetamide, a) 0 deg C, 1 h, b) RT, 16 h
7: 0.08 g / CF3COOH / 3.5 h / Ambient temperature
With
4-methyl-morpholine; bis-triphenylphosphine-palladium(II) chloride; lithium hydroxide; copper(l) iodide; hydrogen; methyl-triphenylphosphonium iodide; sodium hydride; benzotriazol-1-ol; triethylamine; dicyclohexyl-carbodiimide; trifluoroacetic acid;
palladium on activated charcoal;
In
methanol; acetonitrile;
DOI:10.1021/jm970094w