Triethylamine → (+/-)-4-(4-Bromophenyl)-2-methyl-2-(methylsulfonyl)-N-(tetrahydro-2H-pyran-2-yloxy)butanamide

HRID 533501Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 533501
C(N(CC)CC)C.N1(O)C2C=CC=CC=2N=N1.[Br:18][C:19]1[CH:24]=[CH:23][C:22]([CH2:25][CH2:26][C:27]([CH3:35])([S:31]([CH3:34])(=[O:33])=[O:32])[C:28]([OH:30])=O)=[CH:21][CH:20]=1.[O:36]1[CH2:41][CH2:40][CH2:39][CH2:38][CH:37]1[O:42][NH2:43].Cl.C(N=C=NCCCN(C)C)C>ClCCl>[Br:18][C:19]1[CH:20]=[CH:21][C:22]([CH2:25][CH2:26][C:27]([CH3:35])([S:31]([CH3:34])(=[O:33])=[O:32])[C:28]([NH:43][O:42][CH:37]2[CH2:38][CH2:39][CH2:40][CH2:41][O:36]2)=[O:30])=[CH:23][CH:24]=1

Komponenten

7

Edukt 5

HCID 8471TriethylamineHCID 757711-HydroxybenzotriazoleHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 5142091O-(Tetrahydropyran-2-yl)hydroxylamineHCID 66577906(+/-)-4-(4-Bromophenyl)-2-methyl-2-(methylsulfonyl)butanoic acid

Produkt 1

HCID 76445393(+/-)-4-(4-Bromophenyl)-2-methyl-2-(methylsulfonyl)-N-(tetrahydro-2H-pyran-2-yloxy)butanamideAusbeute 76,5 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

Triethylamine (5.49 g, 54.3 mmol) and 1H-benzo[d][1,2,3]triazol-1-ol (7.5 g, 49 mmol) were added to a solution of the (+/−)-4-(4-bromophenyl)-2-methyl-2-(methylsulfonyl)butanoic acid (9.1 g, 27.1 mmol) in dichloromethane (100 mL). After 10 minutes O-tetrahydro-2H-pyran-2yl-hydroxylamine (4.6 g, 39 mmol) was added followed by N1-((ethylimino)methylene)-N3,N3-dimethylpropane-1,3-diamine hydrochloride (EDCI) (7.2 g, 38 mmol). After 12 h the reaction was quenched by the addition of saturated aqueous NaHCO3. The layers were separated and the organic layer was dried (Na2SO4), filtered and concentrated in vacuo. Purification by flash column chromatography on silica gel (hexanes/ethyl acetate 7:3-6:4) afforded the title compound as a white solid (9.0 g, 76%). LCMS m/z 434.1 (M+1) 1H NMR (400 MHz, DMSO-d6) δ ppm 1.54 (d, J=3.90 Hz, 6H) 1.69 (br. s., 3H) 1.78-2.06 (m, 1H) 2.27-2.55 (m, 2H) 2.59-2.72 (m, 1H) 3.03 (d, J=6.64 Hz, 3H) 3.50 (d, J=11.32 Hz, 1H) 3.95-4.22 (m, 1H) 4.97 (d, J=9.37 Hz, 1H) 7.22 (dd, J=8.39, 4.49 Hz, 2H) 7.49 (d, J=8.20 Hz, 2H) 11.36 (br. s., 1H)

Aufarbeitung

  1. customAfter 12 h the reaction was quenched by the addition of saturated aqueous NaHCO3
  2. customThe layers were separated
  3. dry with materialthe organic layer was dried (Na2SO4)
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customPurification by flash column chromatography on silica gel (hexanes/ethyl acetate 7:3-6:4)

Quellen und Nachweise

ORD-Eintrag
ord-331867975e8c426c94d9c62901239378
Quelldatensatz
uspto-grants-2014_10
Patentnummer
US08853258B2

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