Technology Process of 3,17β-bis(1-ethoxyethoxy)-11β-(4-methylbenzenesulphonyloxymethyl)-oestra-1,3,5(10)-triene
There total 4 articles about 3,17β-bis(1-ethoxyethoxy)-11β-(4-methylbenzenesulphonyloxymethyl)-oestra-1,3,5(10)-triene which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
Multi-step reaction with 4 steps
1: 5.0 g / sodium borohydride / ethanol; tetrahydrofuran; H2O / 1 h
2: 7.5 g / 4-methylbenzenesulphonyl acid hydrate / 0.75 h / 15 - 20 °C
3: 1.) diborane/dimethylsulphide, 2.) 96 percent ethanol, 3 M sodium hydroxide, 30 percent hydrogen peroxide / 1.) tetrahydrofuran, 3 h, room temperature, 2.) tetrahydrofuran
4: 11 g / pyridine / 1.) 0 deg C, 15 min, 2.) room temperature
With
pyridine; sodium hydroxide; sodium tetrahydroborate; dimethylsulfide; ethanol; dihydrogen peroxide; toluene-4-sulfonic acid; diborane;
In
tetrahydrofuran; ethanol; water;
- Guidance literature:
-
Multi-step reaction with 2 steps
1: 1.) diborane/dimethylsulphide, 2.) 96 percent ethanol, 3 M sodium hydroxide, 30 percent hydrogen peroxide / 1.) tetrahydrofuran, 3 h, room temperature, 2.) tetrahydrofuran
2: 11 g / pyridine / 1.) 0 deg C, 15 min, 2.) room temperature
With
pyridine; sodium hydroxide; dimethylsulfide; ethanol; dihydrogen peroxide; diborane;
- Guidance literature:
-
Multi-step reaction with 3 steps
1: 7.5 g / 4-methylbenzenesulphonyl acid hydrate / 0.75 h / 15 - 20 °C
2: 1.) diborane/dimethylsulphide, 2.) 96 percent ethanol, 3 M sodium hydroxide, 30 percent hydrogen peroxide / 1.) tetrahydrofuran, 3 h, room temperature, 2.) tetrahydrofuran
3: 11 g / pyridine / 1.) 0 deg C, 15 min, 2.) room temperature
With
pyridine; sodium hydroxide; dimethylsulfide; ethanol; dihydrogen peroxide; toluene-4-sulfonic acid; diborane;