1,2-Dimethylpyridinium iodide → 1-Methyl-2-[m-(2,2-dimethoxyethoxy)-styryl]pyridinium iodide

HRID 1577287

反応式

HRID 1577287 の反応式
[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

参加物

5

反応物 2

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

生成物 1

HCID 705758711-Methyl-2-[m-(2,2-dimethoxyethoxy)-styryl]pyridinium iodide収率 86%

試薬・触媒・溶媒 2

HCID 8082Piperidine触媒HCID 887Methanol溶媒

実験手順

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%.

後処理

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

出典と根拠

ORDレコード
ord-37d5fd755cec42079094b51892d6723f
出典データセット
uspto-grants-1981_09
特許番号
US04287335

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