Technology Process of (20S)-5α-pregnane-20,21-diol 21-p-toluenesulfonate
There total 5 articles about (20S)-5α-pregnane-20,21-diol 21-p-toluenesulfonate which
guide to synthetic route it.
The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:
synthetic route:
- Guidance literature:
-
Multi-step reaction with 3 steps
1: 2 g / BF3-etherate / benzene; methanol / 4 h / Ambient temperature
2: 850 mg / LiAlH4 / tetrahydrofuran; benzene / 2 h / Ambient temperature
3: 860 mg / pyridine / 7 h / Ambient temperature
With
lithium aluminium tetrahydride;
boron trifluoride diethyl etherate;
In
tetrahydrofuran; pyridine; methanol; benzene;
- Guidance literature:
-
Multi-step reaction with 5 steps
1: pyridine / 1 h / 0 °C
2: 2.5 g / Zn, NaI / 1,2-dimethoxy-ethane; H2O / 7.5 h / Heating
3: 2 g / BF3-etherate / benzene; methanol / 4 h / Ambient temperature
4: 850 mg / LiAlH4 / tetrahydrofuran; benzene / 2 h / Ambient temperature
5: 860 mg / pyridine / 7 h / Ambient temperature
With
lithium aluminium tetrahydride; sodium iodide; zinc;
boron trifluoride diethyl etherate;
In
tetrahydrofuran; pyridine; methanol; 1,2-dimethoxyethane; water; benzene;
- Guidance literature:
-
Multi-step reaction with 4 steps
1: 2.5 g / Zn, NaI / 1,2-dimethoxy-ethane; H2O / 7.5 h / Heating
2: 2 g / BF3-etherate / benzene; methanol / 4 h / Ambient temperature
3: 850 mg / LiAlH4 / tetrahydrofuran; benzene / 2 h / Ambient temperature
4: 860 mg / pyridine / 7 h / Ambient temperature
With
lithium aluminium tetrahydride; sodium iodide; zinc;
boron trifluoride diethyl etherate;
In
tetrahydrofuran; pyridine; methanol; 1,2-dimethoxyethane; water; benzene;
