Methyl iodide → 4-Bromo-2-[(cyclopropyl-methylamino)-methyl]-benzoic acid isopropyl ester

HRID 1869961ノート

反応式

HRID 1869961 の反応式
[CH:1]([O:4][C:5](=[O:18])[C:6]1[CH:11]=[CH:10][C:9]([Br:12])=[CH:8][C:7]=1[CH2:13][NH:14][CH:15]1[CH2:17][CH2:16]1)([CH3:3])[CH3:2].[C:19](=O)([O-])[O-].[K+].[K+].CI>CC(C)=O>[CH:1]([O:4][C:5](=[O:18])[C:6]1[CH:11]=[CH:10][C:9]([Br:12])=[CH:8][C:7]=1[CH2:13][N:14]([CH:15]1[CH2:16][CH2:17]1)[CH3:19])([CH3:3])[CH3:2]

参加物

5

反応物 3

HCID 6328Methyl iodideHCID 11430Potassium CarbonateHCID 574242534-Bromo-2-cyclopropylaminomethyl-benzoic acid isopropyl ester2 回

生成物 1

HCID 574242544-Bromo-2-[(cyclopropyl-methylamino)-methyl]-benzoic acid isopropyl ester収率 88.5%

試薬・触媒・溶媒 1

HCID 180Acetone溶媒

実験手順

A solution of 4-bromo-2-cyclopropylaminomethyl-benzoic acid isopropyl ester (Intermediate 119, 1.33 g, 4.26 mmol) in acetone (8 mL) was treated with potassium carbonate (2.36 g, 17.05 mmol) and methyl iodide (0.53 mL, 8.52 mmol) and the resulting reaction mixture was stirred at ambient temperature for 3 h. The volatiles were evaporated in vacuo, the residue was diluted with water and extracted with diethyl ether (×2). The combined organic phase was dried over anhydrous magnesium sulfate, filtered over a short bed of silica gel (230-400 mesh) and evaporated in vacuo to afford the title product (1.23 g, 70%).

後処理

  1. customthe resulting reaction mixture
  2. customThe volatiles were evaporated in vacuo
  3. additionthe residue was diluted with water
  4. extractionextracted with diethyl ether (×2)
  5. dry with materialThe combined organic phase was dried over anhydrous magnesium sulfate
  6. filtrationfiltered over a short bed of silica gel (230-400 mesh)
  7. customevaporated in vacuo

出典と根拠

ORDレコード
ord-b3cef9cf1aea4e95b53c5bf282c2469b
出典データセット
uspto-grants-2009_12
特許番号
US07638648B2

反応ノート

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