Triphenylphosphine → Methyl 1-[2-(4-tert-butoxyphenoxy)ethyl]-4-chloro-1H-pyrrolo[3,2-c]pyridine-2-carboxylate

HRID 513197Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 513197
[Cl:1][C:2]1[C:7]2[CH:8]=[C:9]([C:11]([O:13][CH3:14])=[O:12])[NH:10][C:6]=2[CH:5]=[CH:4][N:3]=1.[C:15]([O:19][C:20]1[CH:29]=[CH:28][C:23]([O:24][CH2:25][CH2:26]O)=[CH:22][CH:21]=1)([CH3:18])([CH3:17])[CH3:16].C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.CC(OC(/N=N/C(OC(C)C)=O)=O)C>C1(C)C=CC=CC=1>[C:15]([O:19][C:20]1[CH:21]=[CH:22][C:23]([O:24][CH2:25][CH2:26][N:10]2[C:6]3[CH:5]=[CH:4][N:3]=[C:2]([Cl:1])[C:7]=3[CH:8]=[C:9]2[C:11]([O:13][CH3:14])=[O:12])=[CH:28][CH:29]=1)([CH3:17])([CH3:16])[CH3:18]

Komponenten

6

Edukt 4

HCID 11776TriphenylphosphineHCID 5363146Diisopropyl azodicarboxylateHCID 26599236methyl 4-chloro-1H-pyrrolo[3,2-c]pyridine-2-carboxylateHCID 712301312-(4-Tert-butoxyphenoxy)ethanol

Produkt 1

HCID 86720574Methyl 1-[2-(4-tert-butoxyphenoxy)ethyl]-4-chloro-1H-pyrrolo[3,2-c]pyridine-2-carboxylateAusbeute 105 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 1140TolueneLösungsmittel

Versuchsvorschrift

Methyl 4-chloro-1H-pyrrolo[3,2-c]pyridine-2-carboxylate (500 mg, 2.374 mmole), 2-(4-tert-butoxyphenoxy)ethanol (624 mg, 2.97 mmole), and PPh3 (778 mg, 2.97 mmole) were combined in toluene (10 mL) at RT. To this was added DIAD (0.58 mL, 2.98 mmole) slowly at RT. After 3 hr the mixture was concentrated. Flash column chromatography (Biotage-SNAP-50 g SiO2, 0-25% EtOAc/hexanes) gave the title compound (1.0 g, 105%) as a white solid. 1H NMR (400 MHz, CDCl3): δ 8.18 (d, J=6.0 Hz, 1 H); 7.44 (d, J=1.0 Hz, 1 H); 7.43-7.38 (m, 1 H); 6.85-6.81 (m, 2 H); 6.64-6.60 (m, 2 H); 4.92 (t, J=5.0 Hz, 2 H); 4.31 (t, J=5.0 Hz, 2 H); 3.95 (s, 3H); 1.26 (s, 9 H).

Aufarbeitung

  1. concentrationAfter 3 hr the mixture was concentrated

Quellen und Nachweise

ORD-Eintrag
ord-5a388207a6814effb0e693245ea5e253
Quelldatensatz
uspto-grants-2015_08
Patentnummer
US09102673B2

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