Technology Process of (S)-2,2-dimethyl-4-(2-oxo-ethyl)-oxazolidine-3-carboxylic acid benzyl ester
There total 11 articles about (S)-2,2-dimethyl-4-(2-oxo-ethyl)-oxazolidine-3-carboxylic acid benzyl ester which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
2-[(4S)-(3-benzyloxycarbonyl-2,2-dimethyl-1,3-oxazolidin-4-y)]ethanol;
With
oxalyl dichloride; dimethyl sulfoxide;
In
dichloromethane;
at -70 ℃;
With
triethylamine;
In
dichloromethane;
Cooling;
- Guidance literature:
-
Multi-step reaction with 2 steps
1.1: toluene-4-sulfonic acid / 2 h / 20 °C
1.2: 72 h
1.3: 64 h / 20 °C
2.1: oxalyl dichloride; dimethyl sulfoxide / dichloromethane / 1 h / -70 °C
2.2: -70 °C
With
oxalyl dichloride; toluene-4-sulfonic acid; dimethyl sulfoxide;
In
dichloromethane;
- Guidance literature:
-
Multi-step reaction with 4 steps
1.1: HOBt; DCC / tetrahydrofuran / 0.5 h / 0 °C
1.2: 86 percent / NaBH4 / tetrahydrofuran / 0.5 h / 0 °C
2.1: 87 percent / p-toluenesulfonic acid hydrate / acetone / 20 °C
3.1: 91 percent / NaBH4; CaCl2 / ethanol / 0 °C
4.1: SO3*pyridine; Et3N / CHCl3; dimethylsulfoxide / 1 h / 0 °C
With
sodium tetrahydroborate; pyridine-SO3 complex; benzotriazol-1-ol; toluene-4-sulfonic acid; triethylamine; dicyclohexyl-carbodiimide; calcium chloride;
In
tetrahydrofuran; ethanol; chloroform; dimethyl sulfoxide; acetone;
DOI:10.3987/COM-04-10206