Pyridine → But-2-yn-1-yl {6-[({[(4-methyl-1,2,5-thiadiazol-3-yl)(phenyl)methylidene]-amino}oxy)methyl]pyridin-2-yl}carbamate

HRID 2039687Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2039687
[CH3:1][C:2]1[C:3](/[C:7](=[N:14]\[O:15][CH2:16][C:17]2[N:22]=[C:21]([NH2:23])[CH:20]=[CH:19][CH:18]=2)/[C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=2)=[N:4][S:5][N:6]=1.N1C=CC=CC=1.[C:30](Cl)(=[O:36])[O:31][CH2:32][C:33]#[C:34][CH3:35]>O1CCOCC1.C(Cl)Cl.O>[CH3:1][C:2]1[C:3]([C:7](=[N:14][O:15][CH2:16][C:17]2[N:22]=[C:21]([NH:23][C:30](=[O:36])[O:31][CH2:32][C:33]#[C:34][CH3:35])[CH:20]=[CH:19][CH:18]=2)[C:8]2[CH:9]=[CH:10][CH:11]=[CH:12][CH:13]=2)=[N:4][S:5][N:6]=1

Komponenten

7

Edukt 3

HCID 1049PyridineHCID 41316692-Butyn-1-yl chloroformateHCID 873948166-[[(Z)-[(4-methyl-1,2,5-thiadiazol-3-yl)-phenylmethylidene]amino]oxymethyl]pyridin-2-amine

Produkt 1

HCID 86659838But-2-yn-1-yl {6-[({[(4-methyl-1,2,5-thiadiazol-3-yl)(phenyl)methylidene]-amino}oxy)methyl]pyridin-2-yl}carbamateAusbeute 93 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 962WaterLösungsmittelHCID 6344DichloromethaneLösungsmittelHCID 312751,4-DioxaneLösungsmittel

Versuchsvorschrift

To a stirred solution of 6-[({[(Z)-(4-methyl-1,2,5-thiadiazol-3-yl)(phenyl)methylene]amino}oxy)methyl]pyridin-2-amine (100 mg, 0.31 mmol) in dry 1,4-dioxane (5 mL) were added pyridine (37 μL, 0.46 mmol) and but-2-yn-1-yl carbonochloridate (82 mg, 0.62 mmol). The reaction mixture was stirred at room temperature for 18 h, then diluted with DCM (10 mL) and water (10 mL), the organic layer was dried (MgSO4) and concentrated in vacuo. Purification on silica gel afforded but-2-yn-1-yl {6-[({[(4-methyl-1,2,5-thiadiazol-3-yl)(phenyl)methylidene]-amino}oxy)methyl]pyridin-2-yl}carbamate as a colourless oil [120 mg, yield 93%; HPLC/MS: m/z=422 (M+H); log P(HCOOH)=4.28].

Aufarbeitung

  1. dry with materialthe organic layer was dried (MgSO4)
  2. concentrationconcentrated in vacuo
  3. customPurification on silica gel

Quellen und Nachweise

ORD-Eintrag
ord-81e3130386c241c88baacb14db14e25c
Quelldatensatz
uspto-grants-2013_11
Patentnummer
US08580799B2

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