Acetic Acid → tert-Butyl 3-[4-cyclopropyl-5-[3-(2-ethylbutyl)cyclobutyl]isoxazol-3-yl]-5-hydroxyvalerate

HRID 1912098Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1912098
[F-].C([N+](CCCC)(CCCC)CCCC)CCC.O.C(O)(=O)C.[Si]([O:41][CH2:42][CH2:43][CH:44]([C:53]1[C:57]([CH:58]2[CH2:60][CH2:59]2)=[C:56]([CH:61]2[CH2:64][CH:63]([CH2:65][CH:66]([CH2:69][CH3:70])[CH2:67][CH3:68])[CH2:62]2)[O:55][N:54]=1)[CH2:45][C:46]([O:48][C:49]([CH3:52])([CH3:51])[CH3:50])=[O:47])(C(C)(C)C)(C1C=CC=CC=1)C1C=CC=CC=1>O1CCCC1>[CH:58]1([C:57]2[C:53]([CH:44]([CH2:43][CH2:42][OH:41])[CH2:45][C:46]([O:48][C:49]([CH3:51])([CH3:50])[CH3:52])=[O:47])=[N:54][O:55][C:56]=2[CH:61]2[CH2:62][CH:63]([CH2:65][CH:66]([CH2:69][CH3:70])[CH2:67][CH3:68])[CH2:64]2)[CH2:59][CH2:60]1

Komponenten

6

Edukt 4

HCID 176Acetic AcidHCID 962WaterHCID 2724141Tetrabutylammonium FluorideHCID 71114789tert-Butyl 5-(tert-butyldiphenylsilanyloxy)-3-{4-cyclopropyl-5-[3-(2-ethylbutyl)cyclobutyl]isoxazol-3-yl}valerate

Produkt 1

HCID 71127337tert-Butyl 3-[4-cyclopropyl-5-[3-(2-ethylbutyl)cyclobutyl]isoxazol-3-yl]-5-hydroxyvalerateAusbeute 97,7 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

To tetrabutylammonium fluoride (1 M in tetrahydrofuran) (6.26 mL) were added water (0.0725 mL), acetic acid (0.29 mL) and a solution of tert-butyl 5-(tert-butyldiphenylsilanyloxy)-3-{4-cyclopropyl-5-[3-(2-ethylbutyl)cyclobutyl]isoxazol-3-yl}valerate (2.76 g) in tetrahydrofuran (20 mL) at ice temperature. The mixture was stirred at RT overnight. The reaction mixture was concentrated in vacuo. The residue was purified by silica gel column chromatography (Eluent: ethyl acetate/hexane=1/6→1/4→1/2) to give the title compound (1.72 g).

Aufarbeitung

  1. concentrationThe reaction mixture was concentrated in vacuo
  2. customThe residue was purified by silica gel column chromatography (Eluent: ethyl acetate/hexane=1/6→1/4→1/2)

Quellen und Nachweise

ORD-Eintrag
ord-e7d8715392f0478989f9c8cf5581c2b1
Quelldatensatz
uspto-grants-2013_12
Patentnummer
US08604069B2

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