Sodium Iodide → Methyl 4-((di-tert-butoxyphosphoryloxy)methyl)benzoate

HRID 595040

反応式

HRID 595040 の反応式
Br[CH2:2][C:3]1[CH:12]=[CH:11][C:6]([C:7]([O:9][CH3:10])=[O:8])=[CH:5][CH:4]=1.[P:13]([O-:25])([O:20][C:21]([CH3:24])([CH3:23])[CH3:22])([O:15][C:16]([CH3:19])([CH3:18])[CH3:17])=[O:14].[K+].[I-].[Na+]>CN(C=O)C.CCOCC>[C:21]([O:20][P:13]([O:25][CH2:2][C:3]1[CH:12]=[CH:11][C:6]([C:7]([O:9][CH3:10])=[O:8])=[CH:5][CH:4]=1)([O:15][C:16]([CH3:19])([CH3:18])[CH3:17])=[O:14])([CH3:24])([CH3:23])[CH3:22]

参加物

6

反応物 3

HCID 5238Sodium IodideHCID 256687Methyl 4-(bromomethyl)benzoateHCID 23674467Potassium di-tert-butyl phosphate

生成物 1

HCID 90087888Methyl 4-((di-tert-butoxyphosphoryloxy)methyl)benzoate

試薬・触媒・溶媒 2

HCID 3283Diethyl Ether溶媒HCID 6228Dimethylformamide溶媒

実験手順

Methyl 4-(bromomethyl)benzoate (1200 mg, 5.24 mmol), potassium di-tert-butyl phosphate (1431 mg, 5.76 mmol) and sodium iodide (785 mg, 5.24 mmol) were combined in DMF (3.00 mL) under nitrogen. The reaction mixture was stirred at room temperature for 24 h. The reaction mixture was diluted with ether, washed with 10% LiCl solution and brine, then dried (MgSO4), filtered and concentrated in vacuo. The residue was purified by silica gel chromatography (hexane/EtOAc) to provide Preparation 55A (571 mg, 1.593 mmol, 30%): 1H NMR (400 MHz, CDCl3) δ 8.03 (d, J=8.4 Hz, 2H), 7.53-7.37 (m, 2H), 5.05 (d, J=7.5 Hz, 2H), 3.92 (s, 3H), 1.48 (d, J=0.4 Hz, 18H).

後処理

  1. washwashed with 10% LiCl solution and brine
  2. dry with materialdried (MgSO4)
  3. filtrationfiltered
  4. concentrationconcentrated in vacuo
  5. customThe residue was purified by silica gel chromatography (hexane/EtOAc)
  6. customto provide

出典と根拠

ORDレコード
ord-ddb14697f5774d0e8ba27545822bb64b
出典データセット
uspto-grants-2016_01
特許番号
US09242941B2

関連ノート

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