Multi-step reaction with 15 steps
1: 1.) 9-borabicyclo<3.3.1>nonane, 2.) 3N aq. NaOH, 30percent H2O2 / 1.) THF, 65 deg C, 3 h, 2.) 1 h, r.t.
2: 97 percent / camphorsulphonic acid / CH2Cl2 / 1 h / Ambient temperature
3: 80 percent / H2 / 10percent Pd/C / ethanol / 12 h / Ambient temperature
4: 88 percent / camphorsulphonic acid, CuSO4 / acetone / 10 h / Ambient temperature
5: Et3N / CH2Cl2 / 1 h
6: NaI / acetone / 3 h / 40 °C
8: 76 percent / NaH / paraffin; tetrahydrofuran / 3 h / Ambient temperature
9: 71 percent / n-Bu4NF / tetrahydrofuran / 8 h / Ambient temperature
10: 1.) 4-methylmorpholine-N-oxide (NMO), 4 Angstroem molecular sieves, 2.) tetra-n-propylammonium perruthenate (TPAP) / 1.) CH2Cl2, 10 min, r.t., 2.) 1 h
11: 1.) BuLi / 1.) hexane, DME, a) -10 deg C, 20 min, b) 0 deg C, 0.5 h, 2.) THF, DME, a) -10 deg C, 0.5 h, b) -10 deg C to r.t., 2 h
12: 1.) 4-methylmorpholine-N-oxide (NMO), 4 Angstroem molecular sieves, 2.) tetra-n-propylammonium perruthenate (TPAP) / 1.) CH3CN, 10 min, r.t., 2.) 3 h
13: 86 percent / H2 / 10percent Pd/C / ethanol / 5 h / Ambient temperature
14: 84 percent / CrO3, conc. H2SO4 / H2O; acetone / 1 h / -25 - -5 °C
15: 1.) ClCO2Et, Et3N / 1.) CH2Cl2, -10 deg C, 30 min, 2.) THF, a) -10 deg C, 1 h, b) 16 h, r.t.
With
chromium(VI) oxide; sodium hydroxide; 9-borabicyclo[3.3.1]nonane dimer; n-butyllithium; tetrapropylammonium perruthennate; 4 A molecular sieve; sulfuric acid; camphor-10-sulfonic acid; tetrabutyl ammonium fluoride; hydrogen; dihydrogen peroxide; chloroformic acid ethyl ester; sodium hydride; copper(II) sulfate; 4-methylmorpholine N-oxide; triethylamine; sodium iodide;
palladium on activated charcoal;
In
tetrahydrofuran; ethanol; dichloromethane; water; acetone; paraffin;
DOI:10.1016/S0040-4020(01)80467-1