Multi-step reaction with 36 steps
1.1: Ba(OH)2*8H2O / dioxane; H2O / 60 °C
1.2: 88 percent / CSA / CH2Cl2; methanol / 20 °C
2.1: 2,4,6-Cl3C6H2COCl; Et3N / tetrahydrofuran / 20 °C
2.2: 71 percent / DMAP / benzene / 80 °C
3.1: 6.39 g / potassium hexamethyldisilazide; hexamethylphosphoric triamide / tetrahydrofuran; toluene / 0.67 h / -78 °C
4.1: 76 percent / triethylamine / tetrakis(triphenylphosphine)palladium(0) / dimethylformamide / 15 h / 50 °C
5.1: AD mix-α; methanesulfonamide / 2-methyl-propan-2-ol; tetrahydrofuran; H2O / 48 h / 20 °C
6.1: 79 percent / 10-camphorsulfonic acid / CH2Cl2 / 1 h / 20 °C
7.1: DIBALH / CH2Cl2; toluene / 0.5 h / -78 °C
8.1: 2,6-lutidine / CH2Cl2 / 0 - 20 °C
9.1: dimethyldioxirane / CH2Cl2; acetone / 1 h / -20 °C
10.1: 75 percent / triethylsilane; BH3*THF / CH2Cl2; tetrahydrofuran / 0.33 h / 0 °C
11.1: 97 percent / tetra-n-butylammonium fluoride / tetrahydrofuran / 0.25 h / 20 °C
12.1: 98 percent / potassium tert-butoxide / tetrahydrofuran / 0.42 h / 20 °C
13.1: ethanethiol; zinc triflate / CH2Cl2 / 26 h / 20 °C
14.1: 78 percent / CH2Cl2 / 0.33 h / 20 °C
15.1: 86 percent / ethanethiol; zinc triflate / CH2Cl2 / 1.83 h / 20 °C
16.1: 2,6-lutidine / CH2Cl2 / 0.5 h / 20 °C
17.1: 96 percent / camphorsulfonic acid / methanol; CH2Cl2 / 0.75 h / 0 °C
18.1: iodine; triphenylphosphine; imidazole / tetrahydrofuran / 1 h / 20 °C
19.1: 86 percent / potassium tert-butoxide / tetrahydrofuran / 17 h / 0 °C
20.1: tetrahydrofuran / 2 h / 20 °C
21.1: 88 percent / sodium hydrogen carbonate / tetrakis(triphenylphosphine)palladium(0) / dimethylformamide; H2O / 17 h / 20 °C
22.1: dimethyldioxirane / CH2Cl2 / 0.33 h / -20 °C
23.1: 82 percent / triethylsilane; BH3*THF / CH2Cl2; tetrahydrofuran / 0.25 h / -20 °C
24.1: 79.6 mg / camphorsulfonic acid / CH2Cl2 / 0.17 h / 20 °C
25.1: 94 percent / tetra-n-butylammonium fluoride / tetrahydrofuran / 1 h / 20 °C
26.1: 96 percent / 4-methylmorpholine N-oxide / tetrapropylammonium perruthenate / CH2Cl2 / 0.67 h / 20 °C
27.1: zinc triflate / CH2Cl2 / 18 h / 20 °C
28.1: pyridine / 18 h / 20 °C
29.1: 84 percent / m-chloroperbenzoic acid / CH2Cl2 / 0.33 h / 20 °C
30.1: various solvent(s) / 0.17 h / 0 °C
31.1: potassium carbonate / methanol / 0.33 h / 60 °C
32.1: 58 percent / camphorsulfonic acid / CH2Cl2 / 0.33 h / 20 °C
33.1: 89 percent / ethanethiol; zinc triflate / CH2Cl2 / 1 h / 20 °C
34.1: 2,6-lutidine / CH2Cl2 / 0.33 h / 20 °C
35.1: 83 percent / camphorsulfonic acid / methanol; CH2Cl2 / 1.5 h / 0 °C
36.1: 27.4 mg / iodine; triphenylphosphine; imidazole / tetrahydrofuran / 0.25 h / 20 °C
With
1H-imidazole; 2,6-dimethylpyridine; triethylsilane; N,N,N,N,N,N-hexamethylphosphoric triamide; barium dihydroxide; AD-mix-α; borane-THF; methanesulfonamide; 2,4,6-trichlorobenzoyl chloride; camphor-10-sulfonic acid; (1S)-10-camphorsulfonic acid; potassium tert-butylate; tetrabutyl ammonium fluoride; iodine; 3,3-dimethyldioxirane; potassium hexamethylsilazane; zinc trifluoromethanesulfonate; diisobutylaluminium hydride; sodium hydrogencarbonate; potassium carbonate; 4-methylmorpholine N-oxide; triethylamine; 3-chloro-benzenecarboperoxoic acid; triphenylphosphine; ethanethiol;
tetrakis(triphenylphosphine) palladium(0); tetrapropylammonium perruthennate; camphor-10-sulfonic acid;
In
tetrahydrofuran; 1,4-dioxane; pyridine; methanol; dichloromethane; water; N,N-dimethyl-formamide; acetone; toluene; tert-butyl alcohol;
21.1: Suzuki-Miyaura coupling;
DOI:10.1021/ol026306n