Pyridoxal hydrochloride → 2-Methyl-3-hydroxy-4-formyl-5-(z,z,z-octadeca-6,9,12-trienoyloxy)methyl pyridine

HRID 28309

反応式

HRID 28309 の反応式
[C:1](Cl)(=[O:19])[CH2:2][CH2:3][CH2:4][CH2:5]/[CH:6]=[CH:7]\[CH2:8]/[CH:9]=[CH:10]\[CH2:11]/[CH:12]=[CH:13]\[CH2:14][CH2:15][CH2:16][CH2:17][CH3:18].[CH3:21][C:22]1[C:27]([OH:28])=[C:26]([CH:29]=[O:30])[C:25]([CH2:31][OH:32])=[CH:24][N:23]=1.Cl.C(N(CC)CC)C>C(Cl)Cl.CN(C1C=CN=CC=1)C>[CH3:21][C:22]1[C:27]([OH:28])=[C:26]([CH:29]=[O:30])[C:25]([CH2:31][O:32][C:1](=[O:19])[CH2:2][CH2:3][CH2:4][CH2:5]/[CH:6]=[CH:7]\[CH2:8]/[CH:9]=[CH:10]\[CH2:11]/[CH:12]=[CH:13]\[CH2:14][CH2:15][CH2:16][CH2:17][CH3:18])=[CH:24][N:23]=1

参加物

6

実験手順

A solution of z,z,z-octadeca-6,9,12-trienoyl chloride (800 mg, 2.7 mmol) in methylene chloride (10 ml) was added slowly dropwise to a mixture of pyridoxal hydrochloride (500 mg, 2.45 mmol), triethylamine (1 ml, 7.2 mmol) and 4-(N,N-dimethylamino)pyridine (few mg, catalytic amount) in methylene chloride (20 ml) at 0° C. under nitrogen. On completion, as indicated by tlc, the mixture was concentrated and purified by flash chromatography (ethyl acetate/hexane), yielding 2-methyl-3-hydroxy-4-formyl-5-(z,z,z-octadeca-6,9,12-trienoyloxy)methyl pyridine as a colourless oil which subsequently solidified.

後処理

  1. concentrationthe mixture was concentrated
  2. custompurified by flash chromatography (ethyl acetate/hexane)

出典と根拠

ORDレコード
ord-fef7741e30834de381e17cd8e64dcbf6
出典データセット
uspto-grants-2008_09
特許番号
USRE040480E1

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