Technology Process of (-)-(1S,4R)-camphanic acid [((2R)-5-benzyloxy-2-hydroxy-1,2,3,4-tetrahydronaphth-2-yl)methyl]ester
There total 12 articles about (-)-(1S,4R)-camphanic acid [((2R)-5-benzyloxy-2-hydroxy-1,2,3,4-tetrahydronaphth-2-yl)methyl]ester which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
In
ethanol;
at 20 - 80 ℃;
Solvent;
Resolution of racemate;
Large scale;
DOI:10.1021/op3003085
- Guidance literature:
-
Multi-step reaction with 5 steps
1.1: toluene-4-sulfonic acid / toluene / 1 h / 85 - 90 °C / Large scale
2.1: trimethylsulfoxonium iodide; potassium tert-butylate / toluene / 2 h / 20 - 80 °C / Large scale
2.2: Large scale
3.1: toluene-4-sulfonic acid / tetrahydrofuran; water / 3 h / 20 - 35 °C / Large scale
4.1: 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; dmap / N,N-dimethyl-formamide / 2 h / 5 - 10 °C / Large scale
5.1: ethanol / 20 - 80 °C / Resolution of racemate; Large scale
With
dmap; potassium tert-butylate; trimethylsulfoxonium iodide; toluene-4-sulfonic acid; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride;
In
tetrahydrofuran; ethanol; water; N,N-dimethyl-formamide; toluene;
1.1: |Meinwald Rearrangement;
DOI:10.1021/op3003085
- Guidance literature:
-
Multi-step reaction with 8 steps
1.1: sodium tetrahydroborate / toluene; ethanol / 1 h / 5 - 30 °C / Large scale
2.1: potassium hydrogensulfate / toluene / 1 h / Reflux; Large scale
3.1: 3-chloro-benzenecarboperoxoic acid / toluene / 1.5 h / 5 - 30 °C / Large scale
4.1: toluene-4-sulfonic acid / toluene / 1 h / 85 - 90 °C / Large scale
5.1: trimethylsulfoxonium iodide; potassium tert-butylate / toluene / 2 h / 20 - 80 °C / Large scale
5.2: Large scale
6.1: toluene-4-sulfonic acid / tetrahydrofuran; water / 3 h / 20 - 35 °C / Large scale
7.1: 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; dmap / N,N-dimethyl-formamide / 2 h / 5 - 10 °C / Large scale
8.1: ethanol / 20 - 80 °C / Resolution of racemate; Large scale
With
dmap; sodium tetrahydroborate; potassium hydrogensulfate; potassium tert-butylate; trimethylsulfoxonium iodide; toluene-4-sulfonic acid; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; 3-chloro-benzenecarboperoxoic acid;
In
tetrahydrofuran; ethanol; water; N,N-dimethyl-formamide; toluene;
4.1: |Meinwald Rearrangement;
DOI:10.1021/op3003085