Multi-step reaction with 19 steps
1.1: 73 percent / KOH; aq. H2O2 / methanol / 14 h / 50 °C
2.1: oxalyl chloride / toluene / 28 h / 20 °C
3.1: 170 mg / H2; 2,6-lutidine / Pd/C / tetrahydrofuran / 12 h / 20 °C / 3102.97 Torr
4.1: 82 percent / diethyl ether / 3 h / -78 °C
5.1: 99 percent / aq. NaOH / methanol / 26 h / 60 °C
6.1: 92 percent / NaHCO3 / dimethylformamide / 16 h / 20 °C
7.1: 96 percent / 2,6-lutidine / CH2Cl2 / 1 h / 20 °C
8.1: aq. OsO4; N-methylmorpholine oxide / tetrahydrofuran / 16 h / 20 °C
9.1: 566 mg / NaIO4 / tetrahydrofuran; H2O / 4 h / 20 °C
10.1: 83 percent / CrCl2 / tetrahydrofuran; dioxane / 20 h / 20 °C
11.1: 94 percent / Pd(PPh3)4; CuI; triethylamine / 12 h / 20 °C
12.1: 94 percent / triethylamine; DAMP / CH2Cl2 / 2 h / 20 °C
13.1: PdCl2(PPh3)2; Bu3SnH / CH2Cl2
13.2: I2 / CH2Cl2 / 0 °C
13.3: potassium carbonate; methanol / -25 - 0 °C
14.1: 97 percent / Pd(PPh3)4; CuI / benzene / 4 h / 80 °C
15.1: 85 percent / P2O5 / 12 h / 20 °C
16.1: 77 percent / trisdimethylamino sulfonyl trimethylsilyldifluoride; water / dimethylformamide / 26 h / 0 °C
17.1: 84 percent / aq. NaOH / tetrahydrofuran / 30 h / 20 °C
18.1: 2,4,6-trichlorobenzoyl chloride; triethylamine; DMAP / tetrahydrofuran; toluene / 25.5 h / 0 - 20 °C
19.1: Me2BBr / CH2Cl2 / 1 h / -78 °C
With
2,6-dimethylpyridine; chromium dichloride; dmap; bis-triphenylphosphine-palladium(II) chloride; potassium hydroxide; sodium hydroxide; sodium periodate; copper(l) iodide; osmium(VIII) oxide; tetrakis(triphenylphosphine) palladium(0); oxalyl dichloride; dimethylboron bromide; 2,4,6-trichlorobenzoyl chloride; bisacodyl; water; hydrogen; dihydrogen peroxide; tri-n-butyl-tin hydride; phosphorus pentoxide; sodium hydrogencarbonate; 4-methylmorpholine N-oxide; triethylamine;
palladium on activated charcoal;
In
tetrahydrofuran; 1,4-dioxane; methanol; diethyl ether; dichloromethane; water; N,N-dimethyl-formamide; toluene; benzene;
3.1: Rosenmund reduction / 11.1: Sonogashira reaction;
DOI:10.1021/ja028941u