Triphenylarsine → methyl (E) 6-(1,3-dihydro-7-methyl-3-oxo-4-p-toluenesulfonyloxy-6-vinylisobenzofuran-5-yl)-4-methyl-4-hexenoate

HRID 260109Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 260109
[Cl-].[Li+].[C:3]1([As](C2C=CC=CC=2)C2C=CC=CC=2)C=CC=C[CH:4]=1.[CH3:22][C:23]1[C:24](OS(C(F)(F)F)(=O)=O)=[C:25]([CH2:44]/[CH:45]=[C:46](\[CH3:53])/[CH2:47][CH2:48][C:49]([O:51][CH3:52])=[O:50])[C:26]([O:33][S:34]([C:37]2[CH:42]=[CH:41][C:40]([CH3:43])=[CH:39][CH:38]=2)(=[O:36])=[O:35])=[C:27]2[C:31]=1[CH2:30][O:29][C:28]2=[O:32].C([Sn](CCCC)(CCCC)CCCC)=C.[F-].[K+]>CN1CCCC1=O.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C(Cl)(Cl)Cl.[Pd].[Pd].C(OCC)(=O)C.O>[CH3:22][C:23]1[C:24]([CH:3]=[CH2:4])=[C:25]([CH2:44]/[CH:45]=[C:46](\[CH3:53])/[CH2:47][CH2:48][C:49]([O:51][CH3:52])=[O:50])[C:26]([O:33][S:34]([C:37]2[CH:42]=[CH:41][C:40]([CH3:43])=[CH:39][CH:38]=2)(=[O:36])=[O:35])=[C:27]2[C:31]=1[CH2:30][O:29][C:28]2=[O:32]

Komponenten

10

Edukt 5

HCID 11773TriphenylarsineHCID 81998TributylvinyltinHCID 433294Lithium ChlorideHCID 522689Potassium FluorideHCID 10555649methyl (E) 6-(1,3-dihydro-7-methyl-3-oxo-4-p-toluenesulfonyloxy-6-trifluoromethanesulfonyloxyisobenzofuran-5-yl)-4-methyl-4-hexenoate

Produkt 1

HCID 10672508methyl (E) 6-(1,3-dihydro-7-methyl-3-oxo-4-p-toluenesulfonyloxy-6-vinylisobenzofuran-5-yl)-4-methyl-4-hexenoate

Reagenzien, Katalysatoren, Lösungsmittel 4

HCID 11029508Palladium, tris[mu-[(1,2-eta:4,5-eta)-(1E,4E)-1,5-diphenyl-1,4-pentadien-3-one]]di-, compd. with trichloromethane (1:1)KatalysatorHCID 962WaterLösungsmittelHCID 8857Ethyl AcetateLösungsmittelHCID 13387N-methyl-2-pyrrolidoneLösungsmittel

Reaktionsbedingungen

Temperatur
55 °C

Versuchsvorschrift

A mixture of lithium chloride (4.8 g), tris(dibenzylideneacetone)-dipalladium (0) chloroform adduct (0.65 g), triphenylarsine (1.6 g) and methyl (E) 6-(1,3-dihydro-7-methyl-3-oxo-4-p-toluenesulfonyloxy-6-trifluoromethanesulfonyloxyisobenzofuran-5-yl)-4-methyl-4-hexenoate (24.2 g) in N-methylpyrrolidinone (220 ml) was heated to 55° C. Vinyltributyltin (15 g) was added. After 3 hours the mixture was added to water (500 ml), potassium fluoride (16 g) and ethyl acetate. The organic solution was dried, filtered through celite and evaporated to afford methyl (E) 6-(1,3-dihydro-7-methyl-3-oxo-4-p-toluenesulfonyloxy-6-vinylisobenzofuran-5-yl)-4-methyl-4-hexenoate.

Aufarbeitung

  1. customThe organic solution was dried
  2. filtrationfiltered through celite
  3. customevaporated

Quellen und Nachweise

ORD-Eintrag
ord-afe32683f09a4b16b9eb05a066fd4271
Quelldatensatz
uspto-grants-1996_06
Patentnummer
US05525602

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