Triphenylphosphine → HCID 86731260, Verbindung

HRID 2277199Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2277199
[CH:1]1([CH2:4][O:5][C:6]2[C:11]([F:12])=[CH:10][C:9]([C:13]3[O:14][C:15]4[CH:21]=[C:20]([OH:22])[CH:19]=[CH:18][C:16]=4[N:17]=3)=[CH:8][C:7]=2[F:23])[CH2:3][CH2:2]1.O[CH2:25][C@@H:26]([NH:28][C:29](=[O:35])[O:30][C:31]([CH3:34])([CH3:33])[CH3:32])[CH3:27].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(C)C=CC=CC=1.N(C(OC(C)C)=O)=NC(OC(C)C)=O>C1COCC1>[CH:1]1([CH2:4][O:5][C:6]2[C:11]([F:12])=[CH:10][C:9]([C:13]3[O:14][C:15]4[CH:21]=[C:20]([O:22][CH2:27][C@@H:26]([NH:28][C:29](=[O:35])[O:30][C:31]([CH3:32])([CH3:34])[CH3:33])[CH3:25])[CH:19]=[CH:18][C:16]=4[N:17]=3)=[CH:8][C:7]=2[F:23])[CH2:2][CH2:3]1

Komponenten

6

Edukt 4

HCID 11776TriphenylphosphineHCID 70231031,1-Dimethylethyl N-((1S)-2-hydroxy-1-methylethyl)carbamateHCID 66880968DIAD tolueneHCID 867312582-(4-(Cyclopropylmethoxy)-3,5-difluorophenyl)-1,3-benzoxazol-6-ol

Produkt 1

HCID 86731260HCID 86731260, VerbindungAusbeute 90,6 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

To a solution of 2-(4-(cyclopropylmethoxy)-3,5-difluorophenyl)-1,3-benzoxazol-6-ol (1.92 g), tert-butyl ((2S)-1-hydroxypropan-2-yl)carbamate (1.59 g) and triphenylphosphine (2.38 g) in THF (15 mL) was added dropwise diisopropyl azodicarboxylate toluene solution (1.9 M, 4.78 mL), and the mixture was stirred at room temperature for 16 hr. The reaction mixture was concentrated under reduced pressure, and the residue was purified by silica gel column chromatography (NH, hexane/ethyl acetate) to give the title compound (2.60 g). 1H NMR (300 MHz, CDCl3) δ 0.29-0.37 (2H, m), 0.56-0.67 (2H, m), 1.17-1.36 (4H, m), 1.46 (9H, s), 3.94-4.19 (5H, m), 4.67-4.82 (1H, m), 6.97 (1H, dd, J=8.7, 2.3 Hz), 7.10 (1H, d, J=2.3 Hz), 7.62 (1H, d, J=8.7 Hz), 7.68-7.81 (2H, m).

Aufarbeitung

  1. concentrationThe reaction mixture was concentrated under reduced pressure
  2. customthe residue was purified by silica gel column chromatography (NH, hexane/ethyl acetate)

Quellen und Nachweise

ORD-Eintrag
ord-eed1d9b4a77e489c9a72b4943649c11d
Quelldatensatz
uspto-grants-2015_09
Patentnummer
US09133129B2

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