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

HRID 1577286

반응식

HRID 1577286 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: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]

참가 물질

5

반응물 2

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

생성물 1

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

시약·촉매·용매 2

HCID 8082Piperidine촉매HCID 887Methanol용매

실험 절차

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%.

후처리

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

출처 및 근거

ORD 기록
ord-ec75d7a706e44f4081940988e2de3279
출처 데이터셋
uspto-grants-1981_09
특허 번호
US04287335

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