2,2-Diethoxyethylamine → 1-(aminomethyl)-N-methyl-N-phenyl-3,4-dihydro-1H-2-benzopyran-6-amine

HRID 63650

Reaktionsgleichung

Reaktionsgleichung von HRID 63650
[CH3:1][N:2]([C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1)[C:3]1[CH:4]=[C:5]([CH2:9][CH2:10][OH:11])[CH:6]=[CH:7][CH:8]=1.C(O[CH:21](OCC)[CH2:22][NH2:23])C>Cl.O1CCOCC1>[NH2:23][CH2:22][CH:21]1[C:6]2[CH:7]=[CH:8][C:3]([N:2]([CH3:1])[C:12]3[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=3)=[CH:4][C:5]=2[CH2:9][CH2:10][O:11]1

Komponenten

4

Edukt 2

HCID 695242,2-DiethoxyethylamineHCID 113107152-{3-[Methyl(phenyl)amino]phenyl}ethan-1-ol

Produkt 1

HCID 1185982191-(aminomethyl)-N-methyl-N-phenyl-3,4-dihydro-1H-2-benzopyran-6-amineAusbeute 13 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 204431481,4-Dioxane hydrochlorideLösungsmittel

Versuchsvorschrift

2-{3-[Methyl(phenyl)amino]phenyl}ethan-1-ol (1.0 g, 4.4 mmol) was stirred in 4N HCl/dioxane (8 mL) at 0° C. Aminoacetaldehyde diethyl acetal (880 mg, 6.6 mmol) was added, and the reaction stirred for at r.t. for 1 h and then at 108° C. in the microwave for 1 h. The solution was concentrated and purified by silica gel chromatography (0% to 20% MeOH/DCM) to give 150 mg (13%) of the title compound as a yellow oil. [M+H] Calc'd for C17H20N2O, 269. Found, 269.

Aufarbeitung

  1. waitat 108° C. in the microwave for 1 h
  2. concentrationThe solution was concentrated
  3. custompurified by silica gel chromatography (0% to 20% MeOH/DCM)

Quellen und Nachweise

ORD-Eintrag
ord-968ba762155a4ad98ce7ffc10d8d3e05
Quelldatensatz
uspto-grants-2016_09
Patentnummer
US09447046B2

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