Thionyl Chloride → 4-Chloro-6-(chloromethyl)-1,3-dioxaindane
Reaktionsgleichung
[Cl:1][C:2]1[C:7]2[O:8][CH2:9][O:10][C:6]=2[CH:5]=[C:4]([CH2:11]O)[CH:3]=1.O=S(Cl)[Cl:15]>ClCCl>[Cl:1][C:2]1[C:7]2[O:8][CH2:9][O:10][C:6]=2[CH:5]=[C:4]([CH2:11][Cl:15])[CH:3]=1Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
A mixture of (7-chlorobenzo[d][1,3]-dioxol-5-yl)methanol (5.5 g, 30 mmol) and SOCl2 (5.0 mL, 67 mmol) in dichloromethane (20 mL) was stirred at room temperature for 1 h and was then poured into ice water. The organic layer was separated and the aqueous phase was extracted with dichloromethane (50 mL×3). The combined extracts were washed with water and aqueous NaHCO3 solution, dried over Na2SO4 and evaporated under reduced pressure to afford 4-chloro-6-(chloromethyl)benzo[d][1,3]dioxole, which was directly used in the next step.
Aufarbeitung
- customThe organic layer was separated
- extractionthe aqueous phase was extracted with dichloromethane (50 mL×3)
- washThe combined extracts were washed with water and aqueous NaHCO3 solution
- dry with materialdried over Na2SO4
- customevaporated under reduced pressure
Quellen und Nachweise
- ORD-Eintrag
- ord-78d6089cccf74786b39b558a8104067a
- Quelldatensatz
- uspto-grants-2014_01
- Patentnummer
- US08623905B2
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