Triphenylphosphine → methyl (Z)-[4-[3-(4-iodophenyl)-3-(4-trifluoromethylphenyl)allyloxy]-2-methylphenoxy]acetate

HRID 549827Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 549827
[I:1][C:2]1[CH:7]=[CH:6][C:5](/[C:8](/[C:12]2[CH:17]=[CH:16][C:15]([C:18]([F:21])([F:20])[F:19])=[CH:14][CH:13]=2)=[CH:9]\[CH2:10][OH:11])=[CH:4][CH:3]=1.[CH3:22][C:23]1[CH:33]=[C:32](OC/C=C(/C2C=CC(C#CCN3CCOCC3)=CC=2)\C2C=CC=CC=2)[CH:31]=[CH:30][C:24]=1[O:25][CH2:26][C:27]([OH:29])=[O:28].[C:59]1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.N(C(OC(C)C)=O)=NC(OC(C)C)=O>C1(C)C=CC=CC=1.O1CCCC1>[I:1][C:2]1[CH:7]=[CH:6][C:5](/[C:8](/[C:12]2[CH:17]=[CH:16][C:15]([C:18]([F:19])([F:20])[F:21])=[CH:14][CH:13]=2)=[CH:9]\[CH2:10][O:11][C:32]2[CH:31]=[CH:30][C:24]([O:25][CH2:26][C:27]([O:29][CH3:59])=[O:28])=[C:23]([CH3:22])[CH:33]=2)=[CH:4][CH:3]=1

Komponenten

7

Reaktionsbedingungen

Temperatur
0 °C

Versuchsvorschrift

The above allyl alcohol (810 mg, 2.0 mmol), methyl (4-hydroxy-2-methylphenoxy)acetate (431 mg, 2.2 mmol; example 2) and triphenylphosphine (630 mg, 2.4 mmol) were dissolved in a mixture of anhydrous toluene (32 mL) and tetrahydrofuran (12 mL). The mixture was cooled to 0° C., kept under nitrogen and a degassed solution of diisopropyl azodicarboxylate (0.47 mL, 2.4 mmol) in anhydrous tetrahydrofuran (4 mL) was added dropwise during 10 min. The reaction mixture was allowed to warm up to ambient temperature with the bath and then was stirred for 48 h. The solvents were evaporated in vacuo and the residue was submitted to flash column chromatography (silica gel Fluka 60, hexanes/ethyl acetate 85:15) affording methyl (Z)-[4-[3-(4-iodophenyl)-3-(4-trifluoromethylphenyl)allyloxy]-2-methylphenoxy]acetate as solidifying yellow oil.

Aufarbeitung

  1. temperatureto warm up to ambient temperature with the bath
  2. customThe solvents were evaporated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-001883a0820044d087db8ba6e5d2914a
Quelldatensatz
uspto-grants-2011_05
Patentnummer
US07943613B2

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