Pyridine → 3-hydroxy-4-propoxybenzaldehyde O-methyloxime

HRID 2236438ノート

反応式

HRID 2236438 の反応式
[OH:1][C:2]1[CH:3]=[C:4]([CH:7]=[CH:8][C:9]=1[O:10][CH2:11][CH2:12][CH3:13])[CH:5]=O.N1C=CC=CC=1.Cl.[O:21]([NH2:23])[CH3:22]>O>[CH3:22][O:21][N:23]=[CH:5][C:4]1[CH:7]=[CH:8][C:9]([O:10][CH2:11][CH2:12][CH3:13])=[C:2]([OH:1])[CH:3]=1

参加物

5

反応物 3

HCID 1049PyridineHCID 521874O-Methylhydroxylamine hydrochlorideHCID 219461763-Hydroxy-4-propoxybenzaldehyde

生成物 1

HCID 748285453-hydroxy-4-propoxybenzaldehyde O-methyloxime収率 120.9%

試薬・触媒・溶媒 1

HCID 962Water溶媒

実験手順

An amount of 3-hydroxy-4-propoxybenzaldehyde (150 mg, 0.83 mmol) is added pyridine (4.0 ml) at room temperature, followed by addition of methoxylamine hydrogen chloride (101.2 mg, 1.2 mmol). The mixture is stirred at ambient temperature for 24 h, and 4 mL of water is added. After the solvents were evaporated, the residue is dissolved 8 mL of anhydrous ether, washed successively with 2 mL of aqueous sodium bicarbonate, 2 mL of sodium bisulfite, and 2 mL of brine. Dried over magnesium sulfate, evaporated to give a yellow solid (210 mg). MS (ESI) m/z 210.5 (M+1)

後処理

  1. customAfter the solvents were evaporated
  2. dissolutionthe residue is dissolved 8 mL of anhydrous ether
  3. washwashed successively with 2 mL of aqueous sodium bicarbonate, 2 mL of sodium bisulfite, and 2 mL of brine
  4. dry with materialDried over magnesium sulfate
  5. customevaporated

出典と根拠

ORDレコード
ord-772923fef9d840c2934f5eb91cbe0138
出典データセット
uspto-grants-2010_05
特許番号
US07713994B2

反応ノート

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