Triethylamine → 3-{3-[(7-Bromoheptyl)oxy]prop-1-ynyl}benzenesulfonamide

HRID 2118307

Reaktionsgleichung

Reaktionsgleichung von HRID 2118307
[CH2:1]([O:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][Br:12])[C:2]#[CH:3].Br[C:14]1[CH:15]=[C:16]([S:20]([NH2:23])(=[O:22])=[O:21])[CH:17]=[CH:18][CH:19]=1.CCN(CC)CC>C1COCC1.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1.[Cu]I.C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[Br:12][CH2:11][CH2:10][CH2:9][CH2:8][CH2:7][CH2:6][CH2:5][O:4][CH2:1][C:2]#[C:3][C:14]1[CH:15]=[C:16]([S:20]([NH2:23])(=[O:22])=[O:21])[CH:17]=[CH:18][CH:19]=1

Komponenten

8

Edukt 3

HCID 8471TriethylamineHCID 27347653-Bromobenzene-1-sulfonamideHCID 218955401-Bromo-7-(prop-2-yn-1-yloxy)heptane

Produkt 1

HCID 218953853-{3-[(7-Bromoheptyl)oxy]prop-1-ynyl}benzenesulfonamideAusbeute 46,1 %

Reagenzien, Katalysatoren, Lösungsmittel 4

HCID 11776TriphenylphosphineKatalysatorHCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)KatalysatorHCID 178418476HCID 178418476, VerbindungKatalysatorHCID 8028TetrahydrofuranLösungsmittel2×

Versuchsvorschrift

7-Bromoheptyl prop-2-ynyl ether (55.1 g) in THF (250 ml) was added dropwise over ca 8 h to a stirred mixture of 3-bromobenzenesulfonamide (43.5 g), PdCl2(PPh3)2 (6.48 g), PPh3 (1.45 g), CuI (1.4 g) and Et3N (52 ml) in THF (250 ml) at 55±5° C. under nitrogen then the mixture heated for a further ca 15 hrs. The reaction was cooled, filtered through Celite and the solids washed with THF. The solution was concentrated and the product purified by chromatography on flash silica gel (600 g) eluting with petroleum ether:ethyl acetate (ratios ranging successively from 19:1 to 7:3) to give the title compound (33 g)—LC RT=5.85 min.

Aufarbeitung

  1. temperaturethe mixture heated for a further ca 15 hrs
  2. temperatureThe reaction was cooled
  3. filtrationfiltered through Celite
  4. washthe solids washed with THF
  5. concentrationThe solution was concentrated
  6. customthe product purified by chromatography on flash silica gel (600 g)
  7. washeluting with petroleum ether

Quellen und Nachweise

ORD-Eintrag
ord-c0dcccc5d2c64083891ac1e1b32325bd
Quelldatensatz
uspto-grants-2008_10
Patentnummer
US07442837B2

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