Triphosgene → 1-Bromo-4-(1-isocyanatoethyl)benzene
Reaktionsgleichung
[Br:1][C:2]1[CH:7]=[CH:6][C:5]([C@@H:8]([NH2:10])[CH3:9])=[CH:4][CH:3]=1.[C:11]([O-])(O)=[O:12].[Na+].ClC(Cl)(OC(=O)OC(Cl)(Cl)Cl)Cl>C(Cl)Cl>[Br:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8]([N:10]=[C:11]=[O:12])[CH3:9])=[CH:4][CH:3]=1Komponenten
5
Edukt 3
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
To a solution of (S)-1-(4-bromophenyl)ethanamine (240 g, 1.2 mol) in methylene chloride (3 L) and satd aq NaHCO3 (3 L) solution was added triphosgene (118 g, 0.396 mol) at 0° C. The mixture was stirred for 15 min. The organic phase was separated, dried over Na2SO4 and concentrated to give 1-bromo-4-(1-isocyanato-ethyl)-benzene (170 g, 63%).
Aufarbeitung
- customThe organic phase was separated
- dry with materialdried over Na2SO4
- concentrationconcentrated
Quellen und Nachweise
- ORD-Eintrag
- ord-18d960e46e364511988dd69986d040e8
- Quelldatensatz
- uspto-grants-2014_01
- Patentnummer
- US08629138B2
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