Multi-step reaction with 11 steps
1: 95 percent / NaOMe / methanol / 2 h / 25 °C
2: 95 percent / H2 / 5percent Pd/C / methanol / 16 h / 25 °C
3: 92 percent / imidazole / dimethylformamide / 16 h / 25 °C
4: 72 percent / trifluoroacetic acid / tetrahydrofuran; H2O / 0.17 h / 0 °C
5: oxalyl chloride, DMSO / CH2Cl2 / 0.5 h / -78 °C
6: 82 percent / tetrahydrofuran / 1 h / 0 °C
7: 1.) 9-BBN, 2.) H2O2, 3 N NaOH / 1.) THF, 0 deg C, 3 h
8: 72 percent / CrO3, H2SO4 (Jones' reagent) / acetone / 0.5 h / 0 °C
9: 91 percent / 1,3-dicyclohexylcarbodiimide (DCC), 4-(dimethylamino)pyridine (DMAP), camphorsulfonic acid (CSA) / CH2Cl2 / 1.2 h / 25 °C
10: 98 percent / n-Bu4NF / tetrahydrofuran / 3 h / 25 °C
11: 72 percent / 1,3-dicyclohexylcarbodiimide (DCC), 4-(dimethylamino)pyriine (DMAP), camphorsulfonic acid (CSA) / CH2Cl2 / 4 h / 25 °C
With
1H-imidazole; chromium(VI) oxide; dmap; sodium hydroxide; 9-borabicyclo[3.3.1]nonane dimer; oxalyl dichloride; sulfuric acid; camphor-10-sulfonic acid; tetrabutyl ammonium fluoride; hydrogen; dihydrogen peroxide; sodium methylate; dimethyl sulfoxide; dicyclohexyl-carbodiimide; trifluoroacetic acid;
palladium on activated charcoal;
In
tetrahydrofuran; methanol; dichloromethane; water; N,N-dimethyl-formamide; acetone;
DOI:10.1021/ja00164a026