Boron tribromide → N-Trifluoroacetyl-7-hydroxy-8-iodo-1-methyl-2,3,4,5-tetrahydro-1H-3-benzazepine

HRID 221251Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 221251
[F:1][C:2]([F:21])([F:20])[C:3]([N:5]1[CH2:11][CH:10]([CH3:12])[C:9]2[CH:13]=[C:14]([I:19])[C:15]([O:17]C)=[CH:16][C:8]=2[CH2:7][CH2:6]1)=[O:4].B(Br)(Br)Br>ClCCl>[F:20][C:2]([F:1])([F:21])[C:3]([N:5]1[CH2:11][CH:10]([CH3:12])[C:9]2[CH:13]=[C:14]([I:19])[C:15]([OH:17])=[CH:16][C:8]=2[CH2:7][CH2:6]1)=[O:4]

Komponenten

4

Edukt 2

HCID 25134Boron tribromideHCID 22292785N-trifluoroacetyl-8-iodo-7-methoxy-1-methyl-2,3,4,5-tetrahydro-1H-3-benzazepine

Produkt 1

HCID 22292815N-Trifluoroacetyl-7-hydroxy-8-iodo-1-methyl-2,3,4,5-tetrahydro-1H-3-benzazepineAusbeute 97,6 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel2×

Versuchsvorschrift

A solution of N-trifluoroacetyl-8-iodo-7-methoxy-1-methyl-2,3,4,5-tetrahydro-1H-3-benzazepine (80 mg, 0.19 mmol) in dichloromethane (3 mL) was treated with BBr3 (0.40 mL of a 1.0M solution in CH2Cl2, 0.40 mmol) and stirred overnight at 20 C. The excess BBr3 was quenched with water and the product mixture was diluted with ether (20 mL), washed with Na2CO3 (10 mL) and brine (10 mL), dried with Na2SO4 and concentrated. Flash chromatography (15% EtOAc in hexane, silica) resulted in 74 mg of a white solid. MS calculated for C13H13F3INO2+H: 400, observed: 400.

Aufarbeitung

  1. customThe excess BBr3 was quenched with water
  2. additionthe product mixture was diluted with ether (20 mL)
  3. washwashed with Na2CO3 (10 mL) and brine (10 mL)
  4. dry with materialdried with Na2SO4
  5. concentrationconcentrated

Quellen und Nachweise

ORD-Eintrag
ord-3083c4b0a19a4fdb8c8016160e89c843
Quelldatensatz
uspto-grants-2012_06
Patentnummer
US08207158B2

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