Ethanol → HCID 59837445, Verbindung

HRID 272876

Reaktionsgleichung

Reaktionsgleichung von HRID 272876
[N:1]1([CH2:6][CH2:7][CH2:8][O:9][C:10]2[CH:15]=[CH:14][C:13]([C:16]3([CH:22]=O)[CH2:21][CH2:20][O:19][CH2:18][CH2:17]3)=[CH:12][CH:11]=2)[CH2:5][CH2:4][CH2:3][CH2:2]1.Cl.[N:25]1([C:31]([NH2:33])=[O:32])[CH2:30][CH2:29][NH:28][CH2:27][CH2:26]1.C(O)C>CC(C)[O-].[Ti+4].CC(C)[O-].CC(C)[O-].CC(C)[O-].CCN(CC)CC>[N:1]1([CH2:6][CH2:7][CH2:8][O:9][C:10]2[CH:11]=[CH:12][C:13]([C:16]3([CH2:22][N:28]4[CH2:29][CH2:30][N:25]([C:31]([NH2:33])=[O:32])[CH2:26][CH2:27]4)[CH2:17][CH2:18][O:19][CH2:20][CH2:21]3)=[CH:14][CH:15]=2)[CH2:2][CH2:3][CH2:4][CH2:5]1

Komponenten

6

Edukt 3

HCID 702EthanolHCID 2769700Piperazine-1-carboxamide HydrochlorideHCID 598374274-[4-(3-pyrrolidin-1-ylpropoxy)phenyl]tetrahydro-2H-pyran-4-carbaldehyde

Produkt 1

HCID 59837445HCID 59837445, Verbindung

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 11026Titanium isopropoxideKatalysatorHCID 8471TriethylamineLösungsmittel

Versuchsvorschrift

4-[4-(3-Pyrrolidin-1-ylpropoxy)phenyl]tetrahydro-2H-pyran-4-carbaldehyde (317 mg, 1 mmol), piperazine-1-carboxylic acid amide hydrochloride (273 mg, 1.65 mmol), absolute ethanol (12.7 ml), activated 3 Å molecular sieves (320 mg), Et3N (0.278 ml), titanium (IV) isopropoxide (1.46 ml, 5.20 mmol) and STAB (1.8 g, 8.5 mmol) were reacted in accordance with the general procedure D. The isolated crude product was purified by column chromatography on silica eluting with DCM:MeOH:NH3 (98:1:1) to give the title compound as a off white solid (70 mg, 16%). 1H NMR (400 MHz, CDCl3) δ 7.21 (d, 2H), 6.86 (d, 2H), 4.30 (br s, 2H), 4.02 (t, 2H), 3.80-3.71 (m, 2H), 3.58-3.48 (m, 2H), 3.23-3.15 (m, 4H), 2.63 (t, 2H), 2.53 (br s, 4H), 2.40 (s, 2H), 2.19-1.73 (m, 14H).

Aufarbeitung

  1. customThe isolated crude product
  2. customwas purified by column chromatography on silica eluting with DCM:MeOH:NH3 (98:1:1)

Quellen und Nachweise

ORD-Eintrag
ord-9a6e07058fb84f159ef7d6c3636d8e19
Quelldatensatz
uspto-grants-2008_11
Patentnummer
US07456164B2

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