Water → Methyl 1-(4-amino-3-bromophenyl)cyclopropanecarboxylate

HRID 1403858Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1403858
[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2([C:11]([O:13][CH3:14])=[O:12])[CH2:10][CH2:9]2)=[CH:4][CH:3]=1.C1C(=O)N([Br:22])C(=O)C1.O>C(#N)C>[NH2:1][C:2]1[CH:3]=[CH:4][C:5]([C:8]2([C:11]([O:13][CH3:14])=[O:12])[CH2:10][CH2:9]2)=[CH:6][C:7]=1[Br:22]

Komponenten

5

Edukt 3

HCID 962WaterHCID 67184N-bromobutanimideHCID 58841079Methyl 1-(4-aminophenyl)cyclopropane-1-carboxylate

Produkt 1

HCID 59129194Methyl 1-(4-amino-3-bromophenyl)cyclopropanecarboxylateAusbeute 78,5 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6342AcetonitrileLösungsmittel

Versuchsvorschrift

To a solution of methyl 1-(4-aminophenyl)cyclopropanecarboxylate (10.38 g, 0.05 mol) in acetonitrile (200 mL) was added NBS (9.3 g, 0.05 mol) at room temperature. The mixture was stirred overnight. Water (200 mL) was added. The organic layer was separated and the aqueous phase was extracted with EtOAc (80 mL×3). The organic layers were dried with anhydrous Na2SO4 and evaporated to give methyl 1-(4-amino-3-bromophenyl)cyclopropanecarboxylate (10.6 g, 78%), which was used directly in the next step. 1H NMR (400 MHz, CDCl3) δ 7.38 (d, J=2.0 Hz, 1H), 7.08 (dd, J=1.6, 8.4 Hz, 1H), 6.70 (d, J=8.4 Hz, 1H), 3.62 (s, 3H), 1.56-1.54 (m, 2H), 1.14-1.11 (m, 2H).

Aufarbeitung

  1. customThe organic layer was separated
  2. extractionthe aqueous phase was extracted with EtOAc (80 mL×3)
  3. dry with materialThe organic layers were dried with anhydrous Na2SO4
  4. customevaporated

Quellen und Nachweise

ORD-Eintrag
ord-c8544eff4db146e0bd20704161edb0df
Quelldatensatz
uspto-grants-2014_12
Patentnummer
US08912199B2

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