Triethylamine → HCID 68796206, Verbindung

HRID 749485

Reaktionsgleichung

[Cl:1][C:2]1[CH:10]=[C:9]([Cl:11])[C:8]([NH:12][C:13]2[C:18]([F:19])=[CH:17][C:16]([F:20])=[CH:15][C:14]=2[Cl:21])=[CH:7][C:3]=1[C:4]([OH:6])=O.S(Cl)(Cl)=O.[CH3:26][N:27]([CH3:35])[CH:28]=[CH:29][C:30]([O:32][CH2:33][CH3:34])=[O:31].C(N(CC)CC)C>C1(C)C=CC=CC=1>[Cl:1][C:2]1[CH:10]=[C:9]([Cl:11])[C:8]([NH:12][C:13]2[C:18]([F:19])=[CH:17][C:16]([F:20])=[CH:15][C:14]=2[Cl:21])=[CH:7][C:3]=1[C:4]([C:29](=[CH:28][N:27]([CH3:35])[CH3:26])[C:30]([O:32][CH2:33][CH3:34])=[O:31])=[O:6]

Komponenten

Reaktionsbedingungen

Temperatur: 90 °C

Versuchsvorschrift

95 mg (0.27 mmol) of 2,4-dichloro-5-(2-chloro-4,6-difluorophenylamino)benzoic acid were boiled with 0.98 ml of thionyl chloride under reflux for 3 hours. The thionyl chloride was distilled off, and the residue was mixed with 3 ml of toluene and concentrated in vacuo. The residue was taken up in 2 ml of toluene and added to a solution of 39 mg (0.27 mmol) of ethyl 3-dimethylaminoacrylate, 6 μl of triethylamine and 1 ml of toluene. The mixture was heated at 90° C. for 3 hours. The mixture was concentrated and chromatographed on silica gel (heptane:ethyl acetate=75:25 to 0:100 in 45 minutes). 30 mg (23%) of the desired product were obtained.

Aufarbeitung

temperatureunder reflux for 3 hours
distillationThe thionyl chloride was distilled off
additionthe residue was mixed with 3 ml of toluene
concentrationconcentrated in vacuo
concentrationThe mixture was concentrated
customchromatographed on silica gel (heptane:ethyl acetate=75:25 to 0:100 in 45 minutes)

Quellen und Nachweise

ORD-Eintrag: ord-f63dff0bbe204ed5aa229156fe2f37ea
Quelldatensatz: uspto-grants-2008_07
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US07402674B2

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