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2-Bromophenol → 3-(2-Bromophenoxy)-1-isopropylpyrrolidine

HRID 1245858
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1245858
[Br:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[OH:8].[H-].[Na+].CS(O[CH:16]1[CH2:20][CH2:19][N:18]([CH:21]([CH3:23])[CH3:22])[CH2:17]1)(=O)=O>CC(N(C)C)=O>[Br:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[O:8][CH:16]1[CH2:20][CH2:19][N:18]([CH:21]([CH3:23])[CH3:22])[CH2:17]1
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

5

Edukt 3

HCID 72442-BromophenolHCID 24758Sodium hydrideHCID 219143101-Isopropylpyrrolidin-3-yl methanesulphonate

Produkt 1

HCID 219142903-(2-Bromophenoxy)-1-isopropylpyrrolidine

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 31374DimethylacetamideLösungsmittel2×

Reaktionsbedingungen

Temperatur
150 °C

Versuchsvorschrift

To a solution of 2-bromophenol (2.6 g) in dimethylacetamide (20 ml) was added sodium hydride (640 mg) portionwise. A solution of 1-isopropylpyrrolidin-3-yl methanesulphonate [Example 134 (c)] in dimethylacetamide (20 ml) was added and the mixture was heated to 150° C. for 18 h. The mixture was allowed to cool and partitioned between water and dichloromethane. The organic phase was extracted with 2N aqueous hydrochloric acid which was then neutralised and extracted with dichloromethane. The extracts were dried (MgSO4), the solvent removed under vacuum and the product purified by silica chromatography using dichloromethane/aqueous ammonia/methanol mixtures to yield the title compound as a brown oil (496 mg).

Aufarbeitung

  1. temperatureto cool
  2. custompartitioned between water and dichloromethane
  3. extractionThe organic phase was extracted with 2N aqueous hydrochloric acid which
  4. extractionextracted with dichloromethane
  5. dry with materialThe extracts were dried (MgSO4)
  6. customthe solvent removed under vacuum
  7. customthe product purified by silica chromatography

Quellen und Nachweise

ORD-Eintrag
ord-7c5dea4ce75d401f9f11baa818f67ab6
Quelldatensatz
uspto-grants-2006_10
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07125896B2

Notizen zur Reaktion

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