Multi-step reaction with 26 steps
1: 1 M tetra-n-butylammonium fluoride / tetrahydrofuran / 2 h
2: 1.) 50percent NaH, 2.) tetra-n-butylammonium iodide / 1.) reflux, 20 min, 2.) room temp., overnight
3: 94 percent / acetonitrile / 7 h / Heating
4: 70 percent / NaBH4 / methanol / 0.5 h / -10 °C
5: 86 percent / H2O, HgCl2 / acetonitrile / 0.25 h / Ambient temperature
6: CH2Cl2 / 12 h / Ambient temperature
7: tetra-n-butylammonium fluoride / tetrahydrofuran / 2 h
8: 1.) NaH, 2.) tetra-n-butylammonium iodide / 1.) THF, reflux, 20 min, 2.) room temp., overnight
9: 2.) NaBH4 / 1.) CH3CN, reflux, 2.) CH3OH, -10 deg C, 30 min
10: H2O, HgCl2 / acetonitrile / 0.25 h / Ambient temperature
11: CH2Cl2 / 12 h / Ambient temperature
12: tetra-n-butylammonium fluoride / tetrahydrofuran / 2 h
13: 1.) NaH, 2.) tetra-n-butylammonium iodide / 1.) THF, reflux, 20 min, 2.) room temp., overnight
14: 2.) NaBH4 / 1.) CH3CN, reflux, 2.) CH3OH, -10 deg C, 30 min
15: H2O, HgCl2 / acetonitrile / 0.25 h / Ambient temperature
16: CH2Cl2 / 12 h / Ambient temperature
17: tetra-n-butylammonium fluoride / tetrahydrofuran / 2 h
18: 1.) NaBH4, 2.) tetra-n-butylammonium iodide / 1.) THF, reflux, 20 min, 2.) room temp., overnight
19: 2.) NaBH4 / 1.) CH3CN, reflux, 2.) CH3OH, -10 deg C, 30 min
20: H2O, HgCl2 / acetonitrile / 0.25 h / Ambient temperature
21: CH2Cl2 / 12 h / Ambient temperature
22: tetra-n-butylammonium fluoride / tetrahydrofuran / 2 h
23: 1.) NaH, 2.) tetra-n-butylammonium iodide / 1.) THF, reflux, 20 min, 2.) room temp., overnight
24: 2.) NaBH4 / 1.) CH3CN, reflux, 2.) CH3OH, -10 deg C, 30 min
25: H2O, HgCl2 / acetonitrile / 0.25 h / Ambient temperature
26: CH2Cl2 / 12 h / Ambient temperature
With
sodium tetrahydroborate; tetrabutyl ammonium fluoride; water; tetra-(n-butyl)ammonium iodide; sodium hydride; mercury dichloride;
In
tetrahydrofuran; methanol; dichloromethane; acetonitrile;
DOI:10.1021/jo00264a035