Water → HCID 68379343, Verbindung

HRID 1410022Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1410022
[CH3:1][C:2]1([CH3:18])[C:6]([CH3:8])([CH3:7])[O:5][B:4]([C:9]2[CH:10]=[C:11]([CH:15]=[CH:16][CH:17]=2)[C:12]([OH:14])=O)[O:3]1.[NH2:19][C:20]1[CH:29]=[CH:28][C:23]([C:24]([O:26][CH3:27])=[O:25])=[C:22]([O:30][CH3:31])[CH:21]=1.CCN=C=NCCCN(C)C.O>CN(C1C=CN=CC=1)C.CN(C=O)C>[CH3:31][O:30][C:22]1[CH:21]=[C:20]([NH:19][C:12](=[O:14])[C:11]2[CH:15]=[CH:16][CH:17]=[C:9]([B:4]3[O:5][C:6]([CH3:7])([CH3:8])[C:2]([CH3:1])([CH3:18])[O:3]3)[CH:10]=2)[CH:29]=[CH:28][C:23]=1[C:24]([O:26][CH3:27])=[O:25]

Komponenten

7

Edukt 4

HCID 962WaterHCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 168705Methyl 4-amino-o-anisateHCID 27346533-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)benzoic acid

Produkt 1

HCID 68379343HCID 68379343, VerbindungAusbeute 22 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 142844-(Dimethylamino)pyridineKatalysatorHCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

A mixture of 3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoic acid (600 mg, 2.4 mmol), methyl 4-amino-2-methoxybenzoate (362 mg, 2 mmol), EDCI (764 mg, 4 mmol) and DMAP (488 mg, 4 mmol) in 10 mL of DMF was stirred at room temperature for 38 hours. The mixture was poured into water and extracted with EtOAc (3×15 mL). The organic layer was washed with brine and dried over Na2SO4. After filtration and concentration, the residue was purified by column chromatography on silica gel eluting with (petroleum ether:EtOAc=4:1) to give methyl 2-methoxy-4-(3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzamido)benzoate (180 mg, 22%) as solid. 1H NMR (300 MHz, CD3OD): δ 8.31 (s, 1H), 8.05-8.01 (m, 1H), 7.97-7.94 (m, 1H), 7.81 (d, 1H, J=8.7 Hz), 7.71 (d, 1H, J=1.8 Hz), 7.53 (d, 1H, J=7.5 Hz), 7.37 (dd, 1H, J1=8.7 Hz, J2=2.1 Hz), 3.91 (s, 3H), 3.85 (s, 3H).

Aufarbeitung

  1. extractionextracted with EtOAc (3×15 mL)
  2. washThe organic layer was washed with brine
  3. dry with materialdried over Na2SO4
  4. filtrationAfter filtration and concentration
  5. customthe residue was purified by column chromatography on silica gel eluting with (petroleum ether:EtOAc=4:1)

Quellen und Nachweise

ORD-Eintrag
ord-d0ccec45480240a09cf63dcb1885a5fe
Quelldatensatz
uspto-grants-2014_12
Patentnummer
US08921383B2

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