Multi-step reaction with 27 steps
1: 3,3-dimethyldioxirane / CH2Cl2; acetone / 2 h / -78 - 0 °C
2: 67 percent / CeCl3*7H2O, NaBH4 / methanol / 1.5 h / -78 °C
3: 97 percent / DMAP, Et3N / CH2Cl2 / 0.5 h / 0 °C
4: 91 percent / AcOH, TBAF / tetrahydrofuran / 0.5 h
5: aq. NaIO4 / tetrahydrofuran / 1 h / Ambient temperature
6: NaBH4 / methanol / 0.5 h / 0 °C
7: Et3N / CH2Cl2 / 0.5 h / 0 °C
8: NaOMe / methanol / 24 h / Ambient temperature
9: 84 percent / PDC, Celite / CH2Cl2 / 20 h / Ambient temperature
10: 82 percent / 30percent aq. H2O2, 3 aq. N NaOH / methanol / 5.5 h / -78 - -48 °C
11: 81 percent / NaHMDS / tetrahydrofuran / 0.5 h / -78 °C
12: 54 percent / LiCl, (Ph3P)2PdCl2 / tetrahydrofuran / 3.5 h / Heating
13: 96 percent / AcOH, TBAF / tetrahydrofuran / 4 h / 0 - 20 °C
14: 96 percent / DMAP, Et3N / CH2Cl2 / 0.25 h / 0 °C
15: 66 percent / Me3SnLi / diethyl ether; tetrahydrofuran / 0.08 h / 0 °C
16: 93 percent / DCC, DMAP / CH2Cl2 / 1 h / 0 - 20 °C
17: benzene / 13 h / Heating
18: tetrahydrofuran / 0.33 h / -78 - 0 °C
19: DIBAL-H / CH2Cl2; toluene / 0.17 h / -48 °C
20: PDC, Celite / CH2Cl2 / 5 h
21: 84 percent / iodobenzene diacetate, I2 / cyclohexane / 0.5 h / Ambient temperature; Irradiation
22: 78 percent / Bu3SnH, AIBN / 0.33 h / 80 °C
23: Dess-Martin periodinane / CH2Cl2 / 0.17 h / Ambient temperature
24: H2O2, 3N aq. NaOH / methanol / 0.17 h / Ambient temperature
25: 1.) n-BuLi, Me3Al / 1.) THF, hexane, 0 deg C, 2.) THF, hexane, 0 deg C, 1 h
26: 56 percent / 3,3-dimethyldioxirane / CH2Cl2; acetone / 0.5 h
27: 1.) O2, t-BuOK, 2.) (EtO)3P / 1.) THF, t-BuOH, -78 deg C, 3 h, 2.) THF, 0 deg C, 10 min
With
(trimethylstannyl)lithium; dmap; bis-triphenylphosphine-palladium(II) chloride; sodium hydroxide; sodium tetrahydroborate; sodium periodate; dipyridinium dichromate; n-butyllithium; cerium(III) chloride; 2,2'-azobis(isobutyronitrile); [bis(acetoxy)iodo]benzene; Celite; potassium tert-butylate; tetrabutyl ammonium fluoride; dihydrogen peroxide; iodine; trimethylaluminum; oxygen; tri-n-butyl-tin hydride; sodium methylate; sodium hexamethyldisilazane; 3,3-dimethyldioxirane; diisobutylaluminium hydride; Dess-Martin periodane; acetic acid; triethylamine; dicyclohexyl-carbodiimide; lithium chloride; triethyl phosphite;
In
tetrahydrofuran; methanol; diethyl ether; dichloromethane; cyclohexane; acetone; toluene; benzene;
DOI:10.1021/ja00104a002