Multi-step reaction with 17 steps
1: 85 percent / tetrahydrofuran
2: AD-mix-β
3: 95 percent / pyridinium p-toluenesulfonate / CH2Cl2
4: 86 percent / tetrabutylammonium fluoride; acetic acid / tetrahydrofuran
5: 85 percent / iodine; triphenylphosphine / tetrahydrofuran / Heating
6: triethylamine
7: sodium methoxide / methanol
8: p-toluenesulfonic acid / dimethylformamide; CH2Cl2
9: 83 percent / sodium hydride / tetrahydrofuran
10: 93 percent / magnesium monoperoxyphthalate / tetrahydrofuran; H2O; ethanol / 60 °C
11: 70 percent / C2F4Br2; potassium hydroxide; Al2O3 / 2-methyl-propan-2-ol / Heating
12: 66 percent / chlorotrimethylsilane / 0 °C
13: 88 percent / triethylamine / CH2Cl2
14: 80 percent / hydrochloric acid / methanol; diethyl ether
15: 83 percent / pyridine / CH2Cl2
16: 96 percent / imidazole / dimethylformamide
17: BF3*Et2O / CH2Cl2 / 0 °C
With
pyridine; 1H-imidazole; hydrogenchloride; aluminum oxide; potassium hydroxide; chloro-trimethyl-silane; AD-mix-β; C2F4Br2; boron trifluoride diethyl etherate; tetrabutyl ammonium fluoride; iodine; sodium methylate; pyridinium p-toluenesulfonate; sodium hydride; toluene-4-sulfonic acid; magnesium monoperoxyphthalate hexahydrate; acetic acid; triethylamine; triphenylphosphine;
In
tetrahydrofuran; methanol; diethyl ether; ethanol; dichloromethane; water; N,N-dimethyl-formamide; tert-butyl alcohol;
2: Sharpless dihydroxylation / 11: Ramberg-Baecklund reaction;
DOI:10.1002/anie.200454215