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Acetic Anhydride → n-[4-(1-Ethyl-propylamino)-6-methyl-2-(2,4,6-trimethyl-phenoxy)-pyridin-3-yl]-acetamide

HRID 1245696
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1245696
[CH3:1][C:2]1[CH:22]=[C:21]([CH3:23])[CH:20]=[C:19]([CH3:24])[C:3]=1[O:4][C:5]1[C:10]([NH2:11])=[C:9]([NH:12][CH:13]([CH2:16][CH3:17])[CH2:14][CH3:15])[CH:8]=[C:7]([CH3:18])[N:6]=1.[C:25](OC(=O)C)(=[O:27])[CH3:26].C(N(CC)CC)C>C(Cl)Cl>[CH2:14]([CH:13]([NH:12][C:9]1[CH:8]=[C:7]([CH3:18])[N:6]=[C:5]([O:4][C:3]2[C:19]([CH3:24])=[CH:20][C:21]([CH3:23])=[CH:22][C:2]=2[CH3:1])[C:10]=1[NH:11][C:25](=[O:27])[CH3:26])[CH2:16][CH3:17])[CH3:15]
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Komponenten

5

Edukt 3

HCID 7918Acetic AnhydrideHCID 8471TriethylamineHCID 219121512-(2,4,6-trimethylphenoxy)-N4-(1-ethylpropyl)-6-methyl-pyridine-3,4-diamine

Produkt 1

HCID 53966610n-[4-(1-Ethyl-propylamino)-6-methyl-2-(2,4,6-trimethyl-phenoxy)-pyridin-3-yl]-acetamideAusbeute 89 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344
Dichloromethane
Lösungsmittel

Versuchsvorschrift

A mixture of 2-(2,4,6-trimethyl-phenoxy)-N4-(1-ethyl-propyl)-6-methyl-pyridine-3,4-diamine (250 mg, 0.763 mmol), acetic anhydride (72 mg, 0.763 mmol) and triethylamine (77 mg, 0.763 mmol) in 5 ml of methylene chloride was stirred at room temperature for 3 hours. The mixture was quenched with water and extracted with ethyl acetate. The organic layer was dried and concentrated to dryness to give 310 mg of the crude material. The crude material was purified through silica gel column chromatography using 2% methanol in chloroform as eluent to give 250 mg (89% yield) of N-[4-(1-ethyl-propylamino)-6-methyl-2-(2,4,6-trimethyl-phenoxy)-pyridin-3-yl]-acetamide as tan solid, mp 154–156° C. 1H NMR(CDCl3) δ 6.97(0.64H), 6.86(s,2H), 6.26(0.36H), 6.14(0.64H), 6.12(s,0.36H), 4.80(d,0.64H), 4.40(d,0.36H), 3.2–3.4(m,1H), 2.29(s,3H), 2.26(s,1.9H), 2.17(s,1.1H), 2.16(s,1.9H), 2.06(s,6H), 1.99(s,1.1H), 1.4–1.75(m,4H), 0.97(t,6H)ppm.

Aufarbeitung

  1. customThe mixture was quenched with water
  2. extractionextracted with ethyl acetate
  3. customThe organic layer was dried
  4. concentrationconcentrated to dryness
  5. customto give 310 mg of the crude material
  6. customThe crude material was purified through silica gel column chromatography

Quellen und Nachweise

ORD-Eintrag
ord-b7ea2ba3dca94f0d8c0bd56a105cd6bb
Quelldatensatz
uspto-grants-2006_10
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07125880B1

Notizen zur Reaktion

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