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Dimethylformamide → tert-Butyl [7-cyano-1-(3,4-dichlorobenzyl)-1,2,3,4-tetrahydronaphthalen-2-yl]carbamate

HRID 2177079
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 2177079
FC(F)(F)S(O[C:7]1[CH:16]=[CH:15][C:14]2[CH2:13][CH2:12][CH:11]([NH:17][C:18]([O:20][C:21]([CH3:24])([CH3:23])[CH3:22])=[O:19])[CH:10]([CH2:25][C:26]3[CH:31]=[CH:30][C:29]([Cl:32])=[C:28]([Cl:33])[CH:27]=3)[C:9]=2[CH:8]=1)(=O)=O.[CH3:36][N:37](C)C=O>ClCCl.C1(P([C-]2C=CC=C2)C2C=CC=CC=2)C=CC=CC=1.[CH-]1C=CC=C1.[Fe+2].[C-]#N.[Zn+2].[C-]#N>[C:21]([O:20][C:18](=[O:19])[NH:17][CH:11]1[CH2:12][CH2:13][C:14]2[C:9](=[CH:8][C:7]([C:36]#[N:37])=[CH:16][CH:15]=2)[CH:10]1[CH2:25][C:26]1[CH:31]=[CH:30][C:29]([Cl:32])=[C:28]([Cl:33])[CH:27]=1)([CH3:24])([CH3:23])[CH3:22]
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 2

HCID 6228DimethylformamideHCID 574672097-[(tert-Butoxycarbonyl)amino]-8-(3,4-dichlorobenzyl)-5,6,7,8-tetrahydronaphthalen-2-yl trifluoromethanesulfonate

Produkt 1

HCID 57467208tert-Butyl [7-cyano-1-(3,4-dichlorobenzyl)-1,2,3,4-tetrahydronaphthalen-2-yl]carbamate

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 11186Zinc cyanide (Zn(CN)2)Katalysator
HCID 15826098
Cyclopenta-1,3-diene;cyclopenta-2,4-dien-1-yl(diphenyl)phosphane;iron(2+)
Katalysator
HCID 6344DichloromethaneLösungsmittel

Reaktionsbedingungen

Temperatur
90 °C

Versuchsvorschrift

Diphenylphosphinoferrocene (100 mg, 0.18 mmol) and dipalladium trisdibenzylideneacetone (41 mg, 0.045 mmol) were suspended under an atmosphere of argon in dry dimethylformamide (5 mL). After stirring at room temperature for 40 min 7-[(tert-butoxycarbonyl)amino]-8-(3,4-dichlorobenzyl)-5,6,7,8-tetrahydronaphthalen-2-yl trifluoromethanesulfonate (0.5 g, 0.902 mmol) was added and the reaction mixture was heated to 90° C. Over 30 min zinc cyanide (159 mg, 1.353 mmol) was added in small portions. After complete addition stirring was continued at 90° C. for 2 h. The reaction mixture was cooled to room temperature diluted with dichloromethane (50 mL), washed with saturated NaHCO3 (3×10 mL). The organic layer was dried (MgSO4) and concentrated in vacuo. The crude product was purified by flash chromatography (dichloromethane, silica gel). Yield: 97 mg (0.225 mmol, 25%).

Aufarbeitung

  1. additionwas added
  2. additionAfter complete addition
  3. temperatureThe reaction mixture was cooled to room temperature
  4. washwashed with saturated NaHCO3 (3×10 mL)
  5. dry with materialThe organic layer was dried (MgSO4)
  6. concentrationconcentrated in vacuo
  7. customThe crude product was purified by flash chromatography (dichloromethane, silica gel)

Quellen und Nachweise

ORD-Eintrag
ord-a28b724fc93f4508bd3342148400e3c8
Quelldatensatz
uspto-grants-2015_06
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US09067871B2

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