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

HRID 1577287

반응식

HRID 1577287 반응식
[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

참가 물질

5

반응물 2

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

생성물 1

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

시약·촉매·용매 2

HCID 8082Piperidine촉매HCID 887Methanol용매

실험 절차

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%.

후처리

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

출처 및 근거

ORD 기록
ord-37d5fd755cec42079094b51892d6723f
출처 데이터셋
uspto-grants-1981_09
특허 번호
US04287335

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