Technology Process of (4S,5S)-1,3-Dibenzyl-5-((R)-[1,3]dioxolan-2-yl-hydroxy-methyl)-2-oxo-imidazolidine-4-carboxylic acid methyl ester
There total 11 articles about (4S,5S)-1,3-Dibenzyl-5-((R)-[1,3]dioxolan-2-yl-hydroxy-methyl)-2-oxo-imidazolidine-4-carboxylic acid methyl ester which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
Multi-step reaction with 12 steps
1.1: aq. NaHCO3 / dioxane / 20 °C
2.1: pyridine / H2O / 55 °C
3.1: p-TSA / 20 °C
4.1: NaH / dimethylformamide / 6 h / 0 - 20 °C
5.1: 98 percent / p-TSA / tetrahydrofuran; H2O / 6 h / Heating
6.1: NaIO4 / acetone; H2O / 0.5 h / 20 °C
7.1: Et3N; DMAP / 1,2-dichloro-ethane / 4 h / Heating
8.1: 62 percent / BF3*Et2O / CH2Cl2 / 0.25 h / -78 - 20 °C
9.1: NaBH4 / methanol / 4 h / 0 - 20 °C
9.2: 93 percent / TMSCl / 4 h / 40 °C
10.1: NaIO4 / acetone; H2O / 0.5 h / 20 °C
11.1: p-TSA / benzene / 6 h / Heating
12.1: 95 percent / Pd-CaCO3 / methanol / 24 h / 20 °C
With
pyridine; dmap; sodium tetrahydroborate; sodium periodate; boron trifluoride diethyl etherate; sodium hydride; sodium hydrogencarbonate; toluene-4-sulfonic acid; triethylamine;
Lindlar's catalyst;
In
tetrahydrofuran; 1,4-dioxane; methanol; dichloromethane; water; 1,2-dichloro-ethane; N,N-dimethyl-formamide; acetone; benzene;
DOI:10.1016/j.tetlet.2004.08.019
- Guidance literature:
-
Multi-step reaction with 10 steps
1.1: p-TSA / 20 °C
2.1: NaH / dimethylformamide / 6 h / 0 - 20 °C
3.1: 98 percent / p-TSA / tetrahydrofuran; H2O / 6 h / Heating
4.1: NaIO4 / acetone; H2O / 0.5 h / 20 °C
5.1: Et3N; DMAP / 1,2-dichloro-ethane / 4 h / Heating
6.1: 62 percent / BF3*Et2O / CH2Cl2 / 0.25 h / -78 - 20 °C
7.1: NaBH4 / methanol / 4 h / 0 - 20 °C
7.2: 93 percent / TMSCl / 4 h / 40 °C
8.1: NaIO4 / acetone; H2O / 0.5 h / 20 °C
9.1: p-TSA / benzene / 6 h / Heating
10.1: 95 percent / Pd-CaCO3 / methanol / 24 h / 20 °C
With
dmap; sodium tetrahydroborate; sodium periodate; boron trifluoride diethyl etherate; sodium hydride; toluene-4-sulfonic acid; triethylamine;
Lindlar's catalyst;
In
tetrahydrofuran; methanol; dichloromethane; water; 1,2-dichloro-ethane; N,N-dimethyl-formamide; acetone; benzene;
DOI:10.1016/j.tetlet.2004.08.019
- Guidance literature:
-
Multi-step reaction with 9 steps
1.1: NaH / dimethylformamide / 6 h / 0 - 20 °C
2.1: 98 percent / p-TSA / tetrahydrofuran; H2O / 6 h / Heating
3.1: NaIO4 / acetone; H2O / 0.5 h / 20 °C
4.1: Et3N; DMAP / 1,2-dichloro-ethane / 4 h / Heating
5.1: 62 percent / BF3*Et2O / CH2Cl2 / 0.25 h / -78 - 20 °C
6.1: NaBH4 / methanol / 4 h / 0 - 20 °C
6.2: 93 percent / TMSCl / 4 h / 40 °C
7.1: NaIO4 / acetone; H2O / 0.5 h / 20 °C
8.1: p-TSA / benzene / 6 h / Heating
9.1: 95 percent / Pd-CaCO3 / methanol / 24 h / 20 °C
With
dmap; sodium tetrahydroborate; sodium periodate; boron trifluoride diethyl etherate; sodium hydride; toluene-4-sulfonic acid; triethylamine;
Lindlar's catalyst;
In
tetrahydrofuran; methanol; dichloromethane; water; 1,2-dichloro-ethane; N,N-dimethyl-formamide; acetone; benzene;
DOI:10.1016/j.tetlet.2004.08.019