Multi-step reaction with 9 steps
1: 4-methylmorpholine / tetrahydrofuran / 0.33 h / -25 - -20 °C
2: diethyl ether / a) 0 deg C, 2 h, b) RT, overnight
3: 92 percent / HCl / dioxane; diethyl ether / 1 h / 0 °C
4: NaBH4 / tetrahydrofuran; H2O / 0.75 h / 0 °C
5: 84 percent / KOH / ethanol / 1.5 h / Ambient temperature
6: 63 percent / aq. NH4OH, NH3 / ethanol / a) 0 deg C, 1 h, b) RT, overnight
7: 49 percent / lithium perchlorate / acetonitrile / 32 h / 30 - 40 °C
8: diisopropylamine / toluene; dimethylformamide / 1 h / 0 °C
9: H2 / Pd(OH)2/C / methanol / 2 h / Ambient temperature
With
4-methyl-morpholine; hydrogenchloride; potassium hydroxide; ammonium hydroxide; sodium tetrahydroborate; hydrogen; lithium perchlorate; diisopropylamine;
palladium dihydroxide;
In
tetrahydrofuran; 1,4-dioxane; methanol; diethyl ether; ethanol; water; N,N-dimethyl-formamide; toluene; acetonitrile;
DOI:10.1021/jm00038a005