Malononitrile, (1-naphthylmethylene)- → 2-[(2-Methoxyphenyl)(1-naphthyl)methyl]malononitrile

HRID 31162

Reaktionsgleichung

Reaktionsgleichung von HRID 31162
[C:1]1([CH:11]=[C:12]([C:15]#[N:16])[C:13]#[N:14])[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[CH:4]=[CH:3][CH:2]=1.[CH3:17][O:18][C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][C:20]=1[Mg]Br>O1CCCC1>[CH3:17][O:18][C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][C:20]=1[CH:11]([C:1]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[CH:4]=[CH:3][CH:2]=1)[CH:12]([C:13]#[N:14])[C:15]#[N:16]

Komponenten

4

Edukt 2

HCID 18092Malononitrile, (1-naphthylmethylene)-HCID 178489560HCID 178489560, Verbindung

Produkt 1

HCID 117165872-[(2-Methoxyphenyl)(1-naphthyl)methyl]malononitrile

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

A flask was charged with (1-naphthalenylmethylene)-propanedinitrile (408 mg, 2 mmol) and 10 mL anhydrous tetrahydrofuran. To this stirred solution was added, at room temperature, 2-methoxy phenyl magnesium bromide (2.4 mL, 2.4 mmol, 1 M in tetrahydrofuran). The reaction was stirred 1.5 hours, after which it was quenched with 1 N hydrochloric acid and taken up in ethyl acetate. The organic layer was washed with saturated aqueous sodium bicarbonate, brine, dried over magnesium sulfate, filtered, and evaporated to dryness. Following purification on silica (20% ethyl acetate/hexanes) 551 mg product was isolated as an off white foam.

Aufarbeitung

  1. additionTo this stirred solution was added, at room temperature
  2. customafter which it was quenched with 1 N hydrochloric acid
  3. washThe organic layer was washed with saturated aqueous sodium bicarbonate, brine
  4. dry with materialdried over magnesium sulfate
  5. filtrationfiltered
  6. customevaporated to dryness
  7. custompurification on silica (20% ethyl acetate/hexanes) 551 mg product
  8. customwas isolated as an off white foam

Quellen und Nachweise

ORD-Eintrag
ord-b2ea1113d63c49478e6a3ed96726ce5a
Quelldatensatz
uspto-grants-2008_09
Patentnummer
US07425580B2

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