Hydrochloric Acid → (3,4-Dichlorophenyl)(oxazol-5-yl)methanamine hydrochloride

HRID 2279439Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2279439
CC(S(/[N:7]=[CH:8]/[C:9]1[O:13][CH:12]=[N:11][CH:10]=1)=O)(C)C.[Cl:14][C:15]1[CH:16]=[C:17]([Mg]Br)[CH:18]=[CH:19][C:20]=1[Cl:21].[NH4+].[Cl-].Cl.O1CCOCC1>CCOCC.C1(C)C=CC=CC=1>[ClH:14].[Cl:14][C:15]1[CH:16]=[C:17]([CH:8]([C:9]2[O:13][CH:12]=[N:11][CH:10]=2)[NH2:7])[CH:18]=[CH:19][C:20]=1[Cl:21]

Komponenten

8

Edukt 5

HCID 313Hydrochloric AcidHCID 25517Ammonium ChlorideHCID 312751,4-DioxaneHCID 88924920HCID 88924920, VerbindungHCID 178478192HCID 178478192, Verbindung

Produkt 1

HCID 68294638(3,4-Dichlorophenyl)(oxazol-5-yl)methanamine hydrochlorideAusbeute 97,8 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 1140TolueneLösungsmittelHCID 3283Diethyl EtherLösungsmittel

Reaktionsbedingungen

Temperatur
-78 °C

Versuchsvorschrift

A dried-flask was charged with 20 (1.211 g, 6.047 mmol) and toluene (5 mL) was added. The reaction was cooled to −78° C. and (3,4-dichlorophenyl)magnesium bromide (18.14 mL, 9.071 mmol, 0.5 M in THF) was added. The reaction was warmed to −10° C. for 15 min. Saturated NH4Cl was added and the reaction was extracted with DCM. The organic layer was separated, dried, filtered, and concentrated. The resulting residue was dissolved in DCM (10 mL) then 4 N HCl in dioxane (15.12 mL, 60.47 mmol) was added and the solution was stirred for 30 min. The reaction mixture was added dropwise to a stirred solution of ether. The resulting solid was filtered and washed with ether to afford (3,4-dichlorophenyl)(oxazol-5-yl)methanamine hydrochloride (22, 1.24 g, 4.436 mmol, 73.35% yield).

Aufarbeitung

  1. additionwas added
  2. temperatureThe reaction was warmed to −10° C. for 15 min
  3. extractionthe reaction was extracted with DCM
  4. customThe organic layer was separated
  5. customdried
  6. filtrationfiltered
  7. concentrationconcentrated
  8. dissolutionThe resulting residue was dissolved in DCM (10 mL)
  9. filtrationThe resulting solid was filtered
  10. washwashed with ether

Quellen und Nachweise

ORD-Eintrag
ord-8681bf735dae4c35bcb683884d9ddc4a
Quelldatensatz
uspto-grants-2015_09
Patentnummer
US09133187B2

Notizen zur Reaktion

Wird geladen…