Diisopropylethylamine → HCID 89851371, Verbindung

HRID 627086Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 627086
[CH2:1]([O:4][NH:5][C@H:6]1[CH2:11][NH:10][C@H:9]([C:12]([NH2:14])=[O:13])[CH:8]=[C:7]1[CH3:15])[CH:2]=[CH2:3].[CH2:16]([O:19]N[C@H]1CN[C@@H](C(N)=O)C=C1C)C=C.C(N(CC)C(C)C)(C)C.ClC(Cl)(OC(=O)OC(Cl)(Cl)Cl)Cl>C(#N)C.C(OCC)(=O)C>[CH2:1]([O:4][N:5]1[C:16](=[O:19])[N:10]2[CH2:11][C@H:6]1[C:7]([CH3:15])=[CH:8][C@H:9]2[C:12]([NH2:14])=[O:13])[CH:2]=[CH2:3]

Komponenten

7

Edukt 4

HCID 81531DiisopropylethylamineHCID 94429Triphosgene2×HCID 89851806(2R,5R)-5-(allyloxyamino)-4-methyl-1,2,5,6-tetrahydropyridine-2-carboxamide2×HCID 89852356(2S,5R)-5-(allyloxyamino)-4-methyl-1,2,5,6-tetrahydropyridine-2-carboxamide

Produkt 1

HCID 89851371HCID 89851371, VerbindungAusbeute 64,8 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 6342AcetonitrileLösungsmittel2×HCID 8857Ethyl AcetateLösungsmittel

Versuchsvorschrift

To a solution of (2S,5R)-5-(allyloxyamino)-4-methyl-1,2,5,6-tetrahydropyridine-2-carboxamide and (2R,5R)-5-(allyloxyamino)-4-methyl-1,2,5,6-tetrahydropyridine-2-carboxamide (Intermediate 22, 0.429 g, 2.03 mmol) and N,N-diisopropylethylamine (1.415 mL, 8.12 mmol) in acetonitrile (170 mL) at 0° C. was added triphosgene (0.241 g, 0.81 mmol) as a solution in acetonitrile (1.5 mL). The triphosgene solution was added at a rate of 0.1 mL/min. Once addition was complete the reaction was warmed to room temperature and stirred over weekend. The reaction mixture was diluted with ethyl acetate, washed with saturated sodium bicarbonate and brine, dried over magnesium sulfate, filtered and concentrated. Silica gel chromatography (0%-20% ethyl acetate/hexanes) afforded (2S,5R)-6-(allyloxy)-4-methyl-7-oxo-1,6-diazabicyclo[3.2.1]oct-3-ene-2-carboxamide (0.312 g, 64.8%) as a light yellow oil.

Aufarbeitung

  1. additionOnce addition
  2. washwashed with saturated sodium bicarbonate and brine
  3. dry with materialdried over magnesium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated

Quellen und Nachweise

ORD-Eintrag
ord-73b26f40baac4b7fa0d3ec75c0000028
Quelldatensatz
uspto-grants-2016_04
Patentnummer
US09309245B2

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