Technology Process of (2R,3R)-3-(4-chlorophenyl)-3-hydroxy-1-[(S)-5-isopropyl-3-phenyl-2-thioxoimidazolidin-1-yl]-2-methylpropan-1-one
There total 5 articles about (2R,3R)-3-(4-chlorophenyl)-3-hydroxy-1-[(S)-5-isopropyl-3-phenyl-2-thioxoimidazolidin-1-yl]-2-methylpropan-1-one which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
(S)-N-propionyl-4-isopropyl-1-phenylimidazolidin-2-thione;
With
titanium tetrachloride; N-ethyl-N,N-diisopropylamine;
In
dichloromethane;
at -78 ℃;
for 1.16667h;
Inert atmosphere;
4-chlorobenzaldehyde;
In
dichloromethane;
at -78 ℃;
for 0.5h;
optical yield given as %de;
stereoselective reaction;
Inert atmosphere;
DOI:10.1055/s-0030-1260187
- Guidance literature:
-
Multi-step reaction with 2 steps
1.1: sodium hydride / tetrahydrofuran / 1 h / 0 °C / Inert atmosphere
1.2: 1 h / 0 °C / Inert atmosphere
2.1: titanium tetrachloride; N-ethyl-N,N-diisopropylamine / dichloromethane / 1.17 h / -78 °C / Inert atmosphere
2.2: 0.5 h / -78 °C / Inert atmosphere
With
titanium tetrachloride; sodium hydride; N-ethyl-N,N-diisopropylamine;
In
tetrahydrofuran; dichloromethane;
2.1: Aldol condensation / 2.2: Aldol condensation;
DOI:10.1055/s-0030-1260187
- Guidance literature:
-
Multi-step reaction with 4 steps
1.1: triethylamine / 1,4-dioxane; water / 1 h / 0 °C
1.2: 12 h / 20 °C / pH 2
2.1: lithium aluminium tetrahydride / diethyl ether / 12 h / Inert atmosphere; Reflux
3.1: sodium hydride / tetrahydrofuran / 1 h / 0 °C / Inert atmosphere
3.2: 1 h / 0 °C / Inert atmosphere
4.1: titanium tetrachloride; N-ethyl-N,N-diisopropylamine / dichloromethane / 1.17 h / -78 °C / Inert atmosphere
4.2: 0.5 h / -78 °C / Inert atmosphere
With
lithium aluminium tetrahydride; titanium tetrachloride; sodium hydride; triethylamine; N-ethyl-N,N-diisopropylamine;
In
tetrahydrofuran; 1,4-dioxane; diethyl ether; dichloromethane; water;
4.1: Aldol condensation / 4.2: Aldol condensation;
DOI:10.1055/s-0030-1260187