Technology Process of (3aR,5S,6S,7R,7aR)-2-(dimethylamino)-6,7-bis(4-methoxybenzyloxy)-5,6,7,7a-tetrahydro-3aH-pyrano[3,2-d]thiazole-5-carbaldehyde
There total 10 articles about (3aR,5S,6S,7R,7aR)-2-(dimethylamino)-6,7-bis(4-methoxybenzyloxy)-5,6,7,7a-tetrahydro-3aH-pyrano[3,2-d]thiazole-5-carbaldehyde which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
With
N-Bromosuccinimide; potassium hydrogencarbonate;
2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; tetrabutylammomium bromide;
In
dichloromethane; water;
at 15 ℃;
for 0.5h;
- Guidance literature:
-
Multi-step reaction with 5 steps
1: potassium carbonate; methanol / 20 °C
2: triethylamine / dmap / N,N-dimethyl-formamide / 50 °C
3: sodium hydride / N,N-dimethyl-formamide / 3 h / 15 - 20 °C
4: tetrabutyl ammonium fluoride / tetrahydrofuran / 20 °C
5: N-Bromosuccinimide; potassium hydrogencarbonate / tetrabutylammomium bromide; 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical / dichloromethane; water / 0.5 h / 15 °C
With
methanol; N-Bromosuccinimide; tetrabutyl ammonium fluoride; sodium hydride; potassium carbonate; potassium hydrogencarbonate; triethylamine;
dmap; 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; tetrabutylammomium bromide;
In
tetrahydrofuran; dichloromethane; water; N,N-dimethyl-formamide;
- Guidance literature:
-
Multi-step reaction with 4 steps
1: triethylamine / dmap / N,N-dimethyl-formamide / 50 °C
2: sodium hydride / N,N-dimethyl-formamide / 3 h / 15 - 20 °C
3: tetrabutyl ammonium fluoride / tetrahydrofuran / 20 °C
4: N-Bromosuccinimide; potassium hydrogencarbonate / tetrabutylammomium bromide; 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical / dichloromethane; water / 0.5 h / 15 °C
With
N-Bromosuccinimide; tetrabutyl ammonium fluoride; sodium hydride; potassium hydrogencarbonate; triethylamine;
dmap; 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; tetrabutylammomium bromide;
In
tetrahydrofuran; dichloromethane; water; N,N-dimethyl-formamide;