Technology Process of C20H21N3O4S
There total 4 articles about C20H21N3O4S which
guide to synthetic route it.
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synthetic route:
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1772-03-8,4710-95-6,6730-09-2,14131-59-0,14131-62-5,14131-63-6,14131-65-8,14131-67-0,14257-79-5,19124-46-0,20706-90-5,91673-92-6
D-(+)-galactosamine hydrochloride
- Guidance literature:
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Multi-step reaction with 4 steps
1.1: potassium carbonate; copper(ll) sulfate pentahydrate; triflic azide / methanol; water / 24 h / 20 °C
1.2: 24 h
1.3: 20 °C
2.1: boron trifluoride diethyl etherate / dichloromethane / 0 - 40 °C
3.1: methanol; sodium methylate / dichloromethane / 0.5 h / 20 °C
4.1: toluene-4-sulfonic acid / N,N-dimethyl-formamide / 2 h / 40 °C
With
methanol; copper(ll) sulfate pentahydrate; triflic azide; boron trifluoride diethyl etherate; sodium methylate; potassium carbonate; toluene-4-sulfonic acid;
In
methanol; dichloromethane; water; N,N-dimethyl-formamide;
- Guidance literature:
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Multi-step reaction with 3 steps
1: boron trifluoride diethyl etherate / dichloromethane / 0 - 40 °C
2: methanol; sodium methylate / dichloromethane / 0.5 h / 20 °C
3: toluene-4-sulfonic acid / N,N-dimethyl-formamide / 2 h / 40 °C
With
methanol; boron trifluoride diethyl etherate; sodium methylate; toluene-4-sulfonic acid;
In
dichloromethane; N,N-dimethyl-formamide;
