1,2-Dimethylpyridinium iodide → HCID 70575871, Verbindung

HRID 1577287

Reaktionsgleichung

Reaktionsgleichung von HRID 1577287
[I-:1].[CH3:2][N+:3]1[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[CH3:9].[CH3:10][O:11][CH:12]([O:23][CH3:24])[CH2:13][O:14][C:15]1[CH:16]=[C:17]([CH:20]=[CH:21][CH:22]=1)[CH:18]=O>CO.N1CCCCC1>[I-:1].[CH3:2][N+:3]1[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[CH:9]=[CH:18][C:17]1[CH:20]=[CH:21][CH:22]=[C:15]([O:14][CH2:13][CH:12]([O:23][CH3:24])[O:11][CH3:10])[CH:16]=1

Komponenten

5

Edukt 2

HCID 701071,2-Dimethylpyridinium iodideHCID 20572041m-(2,2-Dimethoxyethoxy)benzaldehyde

Produkt 1

HCID 70575871HCID 70575871, VerbindungAusbeute 86 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 8082PiperidineKatalysatorHCID 887MethanolLösungsmittel

Versuchsvorschrift

In 6 ml of methanol, 1.50 g of 1,2-dimethyl pyridinium iodide and 1.50 g of m-(2,2-dimethoxyethoxy)-benzaldehyde were dissolved. The resultant solution, with two drops of piperidine added thereto, was refluxed for five hours and thereafter cooled off. Consequently, crystals were deposited. When the crystals were collected and washed thoroughly with acetone, there was obtained 2.34 g of 1-methyl-2-[m-(2,2-dimethoxyethoxy)-styryl]pyridinium iodide. In water, this product showed the highest absorption at 336 nm (ε=2.13×104). The infrared absorption spectrum (KBr) showed peaks at 1620, 1600, 1580, 1268, 1137, 1068, 965, 840, 772 and 680 cm-1. The yield was 86%.

Aufarbeitung

  1. temperaturewas refluxed for five hours
  2. temperaturecooled off
  3. customWhen the crystals were collected
  4. washwashed thoroughly with acetone

Quellen und Nachweise

ORD-Eintrag
ord-37d5fd755cec42079094b51892d6723f
Quelldatensatz
uspto-grants-1981_09
Patentnummer
US04287335

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