N-butyl-2-chloroacetamide → (N-Butylcarbamoyl)methyl methyl (2E)but-2-ene-1,4-dioate

HRID 1685611

Reaktionsgleichung

Reaktionsgleichung von HRID 1685611
[C:1]([O:8][CH3:9])(=[O:7])/[CH:2]=[CH:3]/[C:4]([OH:6])=[O:5].[CH2:10]([NH:14][C:15](=[O:18])[CH2:16]Cl)[CH2:11][CH2:12][CH3:13].C(=O)([O-])O.[Cs+]>CN1C(=O)CCC1>[C:4]([O:6][CH2:16][C:15](=[O:18])[NH:14][CH2:10][CH2:11][CH2:12][CH3:13])(=[O:5])/[CH:3]=[CH:2]/[C:1]([O:8][CH3:9])=[O:7]

Komponenten

5

Edukt 3

HCID 219645N-butyl-2-chloroacetamideHCID 2734983Cesium bicarbonateHCID 5369209Monomethyl Fumarate

Produkt 1

HCID 59202068(N-Butylcarbamoyl)methyl methyl (2E)but-2-ene-1,4-dioateAusbeute 21 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 13387N-methyl-2-pyrrolidoneLösungsmittel

Versuchsvorschrift

Following general procedure A, methyl hydrogen fumarate (MHF) (0.50 g, 3.84 mmol) dissolved in NMP was reacted at ca. 55° C. with N-butyl chloroacetamide (0.69 g, 4.61 mmol) in the presence of CsHCO3 (0.89 g, 4.61 mmol) to afford 0.19 g (21% yield) of the title compound (4) as a white solid after purification by mass-guided preparative HPLC and lyophilization. 1H NMR (CDCl3, 400 MHz): δ 6.98-6.92 (m, 2H), 6.09 (br s, 1H), 4.68 (s, 2H), 3.82 (s, 3H), 3.34-3.29 (q, 2H, J=6.4 Hz), 1.54-1.48 (m, 2H), 1.38-1.32 (m, 2H), 0.956-0.920 (t, J=7.6 Hz, 3H). MS (ESI): m/z 244.04 (M+H)+.

Quellen und Nachweise

ORD-Eintrag
ord-bc52239bb78645329498b616bbb6df30
Quelldatensatz
uspto-grants-2012_04
Patentnummer
US08148414B2

Verknüpfte Notizen

Wird geladen…