Multi-step reaction with 28 steps
1.1: 94 percent / tetrahydrofuran / 0.5 h / 0 °C
2.1: 81 percent / propionic acid / xylene / 2 h / Heating
3.1: AD-mix-β; MeSO2NH2 / 2-methyl-propan-2-ol; H2O / 16 h / 0 °C
4.1: aq. KOH / methanol / 2 h / 60 °C
5.1: 17.2 g / p-toluenesulfonic acid / CH2Cl2 / 1 h / 20 °C
6.1: 95 percent / diethyl azodicarboxylate; triphenylphosphine / benzene / 16 h / 20 °C
7.1: lithium aluminum hydride / diethyl ether / 2.5 h / 0 °C / Heating
8.1: 6.94 g / p-toluenesulfonic acid / hexane / 16 h / Heating
9.1: 75 percent / Celite; PCC / CH2Cl2 / 2 h / 25 °C
10.1: 72 percent / tetrahydrofuran; diethyl ether / 0.5 h / -30 °C
11.1: 91 percent / propionic acid / xylene / 2 h / Heating
12.1: DIBAL-H / toluene / 2 h / -78 °C
13.1: NaH / tetrahydrofuran / 0.5 h / 0 °C
13.2: 4.67 g / toluene; tetrahydrofuran / 16 h / -78 - 25 °C
14.1: 88 percent / DIBAL-H / tetrahydrofuran; toluene / 1 h / -78 °C
15.1: 96 percent / diisopropylethylamine / CH2Cl2 / 16 h / 0 - 25 °C
16.1: 63 percent / AD-mix-α; methanesulfonamide / 2-methyl-propan-2-ol; H2O / 16 h / 0 °C
17.1: 99 percent / triethylamine / CH2Cl2 / 1 h / -30 - 0 °C
18.1: AD-mix-β; methanesulfonamide / 2-methyl-propan-2-ol; H2O / 16 h / 0 °C
19.1: p-toluenesulfonic acid / methanol / 16 h / 20 °C
19.2: 13 percent / pyridine / 4 h / 140 °C
20.1: 64 percent / pyridine / 3.5 h / 0 °C
21.1: 90 percent / potassium carbonate / methanol / 16 h / 20 °C
22.1: 69 percent / pyridine / 16 h / 25 °C
23.1: n-BuLi / tetrahydrofuran / 0.5 h / -78 - -30 °C
23.2: BF3*Et2O / tetrahydrofuran / 10 h / -78 - -30 °C
24.1: 41 mg / tetrabutylammonium fluoride / tetrahydrofuran / 2 h / 0 °C
25.1: 45 percent / copper(I) iodide / Pd(PPh3)4 / triethylamine / 22 h / 20 °C
26.1: 62 percent / H2 / chlorotris(triphenylphosphine)rhodium / benzene; methanol / 16 h / 760 Torr
27.1: m-CPBA / CH2Cl2 / 0.33 h / 0 °C
28.1: 2 mg / toluene / 1 h / Heating
With
pyridine; potassium hydroxide; AD-mix-α; copper(l) iodide; lithium aluminium tetrahydride; n-butyllithium; methanesulfonamide; AD-mix-β; Celite; tetrabutyl ammonium fluoride; hydrogen; sodium hydride; diisobutylaluminium hydride; potassium carbonate; toluene-4-sulfonic acid; propionic acid; triethylamine; N-ethyl-N,N-diisopropylamine; 3-chloro-benzenecarboperoxoic acid; triphenylphosphine; pyridinium chlorochromate; diethylazodicarboxylate;
Wilkinson's catalyst; tetrakis(triphenylphosphine) palladium(0);
In
tetrahydrofuran; methanol; diethyl ether; hexane; dichloromethane; water; triethylamine; toluene; xylene; tert-butyl alcohol; benzene;
1.1: Grignard reaction / 2.1: Claisen-Johnson rearrangement / 3.1: Sharpless dihydroxylation / 4.1: Hydrolysis / 5.1: Cyclization / 6.1: Mitsunobu reaction / 7.1: Reduction / 8.1: Cyclization / 9.1: Oxidation / 10.1: Grignard reaction / 11.1: Claisen-Johnson rearrangement / 12.1: Reduction / 13.1: Metallation / 13.2: Wittig-Horner reaction / 14.1: Reduction / 15.1: Etherification / 16.1: Sharpless dihydroxylation / 17.1: Esterification / 18.1: Sharpless dihydroxylation / 19.1: Hydrolysis / 19.2:;
DOI:10.1021/jo980453a