Multi-step reaction with 13 steps
1: p-toluenesulfonic acid monohydrate / a) 10 deg C, 1h, b) RT, 3 h
2: pyridine / -30 °C
3: NaN3 / dimethylsulfoxide / 2 h / 65 °C
4: pyridine, CrO3 / CH2Cl2 / 0.5 h / Ambient temperature
5: H2 / Raney Ni / methanol / 2 h / Ambient temperature
6: 93 percent / imidazole / dimethylformamide / 2 h / Ambient temperature
7: 96 percent / NaH / dimethylformamide / 2 h / Ambient temperature
8: 92 percent / sodium borohydride / ethanol / Ambient temperature
9: 1) dimethyl sulfoxide, oxalyl dichloride; 3) triethylamine / 1) CH2Cl2, -60 deg C, 5 min; 2) CH2Cl2, -60 deg C, 15 min; 3) CH2Cl2, -60 deg C, 10 min, then room temp.
10: 98 percent / triphenylphosphine, diethyl azodicarboxylate / dimethylformamide / Ambient temperature
11: 1.) hydrazine, 2.) pyridine / 1.) methanol, 30 deg C, 1 d, 2.) RT, overnight
12: 95 percent / tetrabutylammonium fluoride / tetrahydrofuran / 1 h / Ambient temperature
13: 98 percent / RuO4 / CCl4; CH2Cl2 / 1 h / Ambient temperature
With
pyridine; 1H-imidazole; chromium(VI) oxide; sodium tetrahydroborate; sodium azide; ruthenium tetroxide; oxalyl dichloride; tetrabutyl ammonium fluoride; hydrogen; sodium hydride; toluene-4-sulfonic acid; dimethyl sulfoxide; triethylamine; triphenylphosphine; hydrazine; diethylazodicarboxylate;
nickel;
In
tetrahydrofuran; methanol; tetrachloromethane; ethanol; dichloromethane; dimethyl sulfoxide; N,N-dimethyl-formamide;
DOI:10.1246/bcsj.65.978