Boron tribromide → {1-[(4-Phenyl-1,3-thiazol-2-yl)methyl]cyclobutyl}methanol

HRID 1180768Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1180768
C([O:8][CH2:9][C:10]1([CH2:14][C:15]2[S:16][CH:17]=[C:18]([C:20]3[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=3)[N:19]=2)[CH2:13][CH2:12][CH2:11]1)C1C=CC=CC=1.B(Br)(Br)Br>ClCCl>[C:20]1([C:18]2[N:19]=[C:15]([CH2:14][C:10]3([CH2:9][OH:8])[CH2:13][CH2:12][CH2:11]3)[S:16][CH:17]=2)[CH:21]=[CH:22][CH:23]=[CH:24][CH:25]=1

Komponenten

4

Edukt 2

HCID 25134Boron tribromideHCID 112102692-({1-[(Benzyloxy)methyl]cyclobutyl}methyl)-4-phenyl-1,3-thiazole

Produkt 1

HCID 11737047{1-[(4-Phenyl-1,3-thiazol-2-yl)methyl]cyclobutyl}methanolAusbeute 31 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

To a solution of 0.7 g (2.0 mmol) of 2-({1-[(benzyloxy)methyl]cyclobutyl}methyl)-4-phenyl-1,3-thiazole in 15 mL of dichloromethane was added a 1.0 M solution of 2.2 mL (2.2 mmol) of boron tribromide and the contents stirred at room temperature for 16 h. After quenching with 10 mL of methanol, the contents were concentrated under vacuum and the residue was purified by silica gel chromatography using ethyl acetate:hexane (1:9) as the eluent to afford 0.16 g (31%) of {1-[(4-phenyl-1,3-thiazol-2-yl)methyl]cyclobutyl}methanol as a colorless oil. 1H NMR (300 MHz, CDCl3) δ 4.13 (t, J=7 Hz, 1H), 3.66 (d, J=6 Hz, 2H), 3.3 (s, 2H), 2.08-1.94 (m, 6H). GC-MS m/z 260 (M+H).

Aufarbeitung

  1. customAfter quenching with 10 mL of methanol
  2. concentrationthe contents were concentrated under vacuum
  3. customthe residue was purified by silica gel chromatography

Quellen und Nachweise

ORD-Eintrag
ord-b719fed585324370beb4d16dd26749cb
Quelldatensatz
uspto-grants-2007_10
Patentnummer
US07282512B2

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