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

HRID 1577286

反応式

HRID 1577286 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:22]=[CH:21][CH:20]=[CH:19][C:16]=1[CH:17]=O>CO.N1CCCCC1>[I-:1].[CH3:2][N+:3]1[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[CH:9]=[CH:17][C:16]1[CH:19]=[CH:20][CH:21]=[CH:22][C:15]=1[O:14][CH2:13][CH:12]([O:23][CH3:24])[O:11][CH3:10]

参加物

5

反応物 2

HCID 701071,2-Dimethylpyridinium iodideHCID 205720342-(2,2-Dimethoxyethoxy)benzaldehyde

生成物 1

HCID 705758631-Methyl-2-[o-(2,2-dimethoxyethoxy)-styryl]pyridinium iodide収率 87%

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-dimethylpyridinium iodide and 1.50 g of o-(2,2-dimethoxyethoxy)benzaldehyde. The resultant solution, with two drops of piperidine added thereto, was refluxed for five hours and then left to stand and cool off. The crystals which deposited consequently were collected and thoroughly washed with acetone. Consequently, there was obtained 2.36 g of 1-methyl-2-[o-(2,2-dimethoxyethoxy)-styryl]pyridinium iodide which melted at 169°~173° C. This product showed the highest absorption at 353 nm (ε=1.78×104). The infrared absorption spectrum (KBr) showed peaks at 1630, 1610, 1595, 1567, 1515, 1500, 1450, 1280, 1248, 1130, 1065, 971, 780, 760 and 750 cm-1. The yield was 87%.

後処理

  1. temperaturewas refluxed for five hours
  2. waitleft
  3. temperaturecool off
  4. customThe crystals which deposited consequently were collected
  5. washthoroughly washed with acetone

出典と根拠

ORDレコード
ord-ec75d7a706e44f4081940988e2de3279
出典データセット
uspto-grants-1981_09
特許番号
US04287335

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