Diisopropylethylamine → [1-(4-Chloro-phenyl)-cyclopentyl]-(3-hydroxymethyl-piperidin-1-yl)-methanone

HRID 50656

Reaktionsgleichung

Reaktionsgleichung von HRID 50656
[NH:1]1[CH2:6][CH2:5][CH2:4][CH:3]([CH2:7][OH:8])[CH2:2]1.[Cl:9][C:10]1[CH:15]=[CH:14][C:13]([C:16]2([C:21](O)=[O:22])[CH2:20][CH2:19][CH2:18][CH2:17]2)=[CH:12][CH:11]=1.C(N(C(C)C)CC)(C)C.C1CN([P+](Br)(N2CCCC2)N2CCCC2)CC1.F[P-](F)(F)(F)(F)F>ClCCl>[Cl:9][C:10]1[CH:11]=[CH:12][C:13]([C:16]2([C:21]([N:1]3[CH2:6][CH2:5][CH2:4][CH:3]([CH2:7][OH:8])[CH2:2]3)=[O:22])[CH2:20][CH2:19][CH2:18][CH2:17]2)=[CH:14][CH:15]=1

Komponenten

6

Edukt 4

HCID 81531DiisopropylethylamineHCID 974471-(4-Chlorophenyl)cyclopentanecarboxylic acidHCID 107308Piperidin-3-ylmethanolHCID 2733179PyBroP

Produkt 1

HCID 22335026[1-(4-Chloro-phenyl)-cyclopentyl]-(3-hydroxymethyl-piperidin-1-yl)-methanoneAusbeute 156,9 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

A solution of piperdin-3-yl methanol (0.342 g, 2.97 mmol), 1-(4-chloro-phenyl)-cyclopentylcarboxylic acid (1.0 g, 4.45 mmol), diisopropylethyl amine (1.9, 15.00 mmol) in dichloromethane (7 mL) was stirred at room temperature. PyBroP (2.07 g, 4.45 mmol) was added and the reaction mixture continued stirring at room temperature. After 12 h the reaction mixture was quenched with 10% KOH. The aqueous layer was extracted with ethyl acetate. The combined organic layers were dried over sodium sulfate and concentrated to yield a crude oil. The crude material was purified using silica gel chromatography (95:5 hexane:ethyl acetate) to yield the desired compound (1.50 g). C18H24ClNO2, LRMS (m/z)=322 (MH+).

Aufarbeitung

  1. customAfter 12 h the reaction mixture was quenched with 10% KOH
  2. extractionThe aqueous layer was extracted with ethyl acetate
  3. dry with materialThe combined organic layers were dried over sodium sulfate
  4. concentrationconcentrated
  5. customto yield a crude oil
  6. customThe crude material was purified

Quellen und Nachweise

ORD-Eintrag
ord-f01119f38d2b4a158dbe36d70edafa10
Quelldatensatz
uspto-grants-2004_03
Patentnummer
US06713479B2

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