Water → 4'-Methyl-[1,1'-biphenyl]-4-carbohydrazonamide

HRID 923576Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 923576
[NH2:1][NH2:2].C([Li])CCC.[CH3:8][C:9]1[CH:14]=[CH:13][C:12]([C:15]2[CH:20]=[CH:19][C:18]([C:21]#[N:22])=[CH:17][CH:16]=2)=[CH:11][CH:10]=1.O>C1COCC1>[CH3:8][C:9]1[CH:10]=[CH:11][C:12]([C:15]2[CH:20]=[CH:19][C:18]([C:21](=[N:1][NH2:2])[NH2:22])=[CH:17][CH:16]=2)=[CH:13][CH:14]=1

Komponenten

6

Edukt 4

HCID 962WaterHCID 9321HydrazineHCID 170889(1,1'-Biphenyl)-4-carbonitrile, 4'-methyl-HCID 178418339Butyllithium

Produkt 1

HCID 68606274'-Methyl-[1,1'-biphenyl]-4-carbohydrazonamideAusbeute 90 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel2×

Versuchsvorschrift

To a stirring solution of hydrazine (3.32 mL, 3.32 mmol, 1 M in THF) in THF (5 mL) at −78° C. was added butyllithium (1.28 mL, 3.05 mmol, 2.5 M in hexanes). After 30 min, a solution of 4′-methyl-[1,1′-biphenyl]-4-carbonitrile (535 mg, 2.77 mmol) in THF (5 mL) was added. The reaction mixture was allowed to warm to room temperature and stirred overnight. The reaction mixture was poured onto water (150 mL) and stirred vigorously for 1 h. The precipitate was isolated by filtration using water (2×20 mL) and isohexanes (3×20 mL) to wash the filter cake. The solid was dried under vacuum to yield 560 mg (90%) of 4′-methyl-[1,1′-biphenyl]-4-carbohydrazonamide INT-39 as a fine yellow solid. LCMS-ESI (m/z) calculated for C14H15N3: 225; found 226 [M+H]+, tR=1.15 min (Method 10).

Aufarbeitung

  1. additionThe reaction mixture was poured onto water (150 mL)
  2. stirringstirred vigorously for 1 h
  3. customThe precipitate was isolated by filtration
  4. washto wash the filter cake
  5. customThe solid was dried under vacuum

Quellen und Nachweise

ORD-Eintrag
ord-18ffef9c792c4b20a3e880c989f76363
Quelldatensatz
uspto-grants-2016_03
Patentnummer
US09278910B2

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