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Formaldehyde → 2-[(1-Methylethyl)oxy]-5-[3-(2-methyl-1,2,3,4-tetrahydro-5-isoquinolinyl)-1,2,4-oxadiazol-5-yl]benzonitrile

HRID 2059949
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 2059949
[CH3:1][CH:2]([O:4][C:5]1[CH:12]=[CH:11][C:10]([C:13]2[O:17][N:16]=[C:15]([C:18]3[CH:27]=[CH:26][CH:25]=[C:24]4[C:19]=3[CH2:20][CH2:21][NH:22][CH2:23]4)[N:14]=2)=[CH:9][C:6]=1[C:7]#[N:8])[CH3:3].C=O.[BH-](OC(C)=O)(OC(C)=O)O[C:32](C)=O.[Na+]>C(Cl)Cl.[Cl-].[Na+].O.CS(C)=O.CO>[CH3:3][CH:2]([O:4][C:5]1[CH:12]=[CH:11][C:10]([C:13]2[O:17][N:16]=[C:15]([C:18]3[CH:27]=[CH:26][CH:25]=[C:24]4[C:19]=3[CH2:20][CH2:21][N:22]([CH3:32])[CH2:23]4)[N:14]=2)=[CH:9][C:6]=1[C:7]#[N:8])[CH3:1]
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

7

Edukt 3

HCID 712FormaldehydeHCID 5049666Sodium triacetoxyborohydrideHCID 441248992-[(1-Methylethyl)oxy]-5-[3-(1,2,3,4-tetrahydro-5-isoquinolinyl)-1,2,4-oxadiazol-5-yl]benzonitrile

Produkt 1

HCID 441250302-[(1-Methylethyl)oxy]-5-[3-(2-methyl-1,2,3,4-tetrahydro-5-isoquinolinyl)-1,2,4-oxadiazol-5-yl]benzonitrileAusbeute 78 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 6344
Dichloromethane
Lösungsmittel
HCID 22036561Dimethyl sulfoxide methanolLösungsmittel
HCID 57417360Sodium chloride; waterLösungsmittel

Versuchsvorschrift

To a solution of 2-[(1-methylethyl)oxy]-5-[3-(1,2,3,4-tetrahydro-5-isoquinolinyl)-1,2,4-oxadiazol-5-yl]benzonitrile (Example 3, 25.0 mg, 0.069 mmol) and formaldehyde (37% w/v in H2O, 8.0 μL, 0.10 mmol) in DCM (5 mL) was added NaBH(OAc)3 (29 mg, 0.14 mmol) and the resulting solution stirred at room temperature for 20 min. Brine (5 mL) was added, and the aqueous extracted with DCM (5 mL). The combined organics were concentrated in vacuo to give a white solid. This solid was redissolved in DMSO-MeOH, added to an SCX cartridge and washed with MeOH. The product was eluted with NH3 in MeOH; concentration in vacuo gave a white solid (20.1 mg, 78%). 1H NMR (400 MHz, CDCl3) δ 8.41 (1H, d), 8.32 (1H, dd), 7.98 (1H, d), 7.29 (1H, t), 7.20 (1H, d), 7.12 (1H, d), 4.79 (1H, sept), 3.67 (2H, s), 3.30 (2H, t), 2.75 (2H, t), 2.49 (3H, s), 1.47 (6H, d).

Aufarbeitung

  1. extractionthe aqueous extracted with DCM (5 mL)
  2. concentrationThe combined organics were concentrated in vacuo
  3. customto give a white solid
  4. additionadded to an SCX cartridge
  5. washwashed with MeOH
  6. washThe product was eluted with NH3 in MeOH
  7. concentrationconcentration in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-62868c038b884a5a88a06bacb91c2e35
Quelldatensatz
uspto-grants-2012_10
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08278324B2

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