Sodium Hydroxide → 4-[(Oxan-4-yl)oxy]benzoic acid

HRID 880326ノート

反応式

HRID 880326 の反応式
[O:1]1[CH2:6][CH2:5][CH:4]([O:7][C:8]2[CH:17]=[CH:16][C:11]([C:12]([O:14]C)=[O:13])=[CH:10][CH:9]=2)[CH2:3][CH2:2]1.[OH-].[Na+]>CO.O>[O:1]1[CH2:2][CH2:3][CH:4]([O:7][C:8]2[CH:17]=[CH:16][C:11]([C:12]([OH:14])=[O:13])=[CH:10][CH:9]=2)[CH2:5][CH2:6]1

参加物

5

反応物 2

HCID 14798Sodium HydroxideHCID 57770570HCID 57770570、化合物

生成物 1

HCID 242295194-[(Oxan-4-yl)oxy]benzoic acid収率 98.6%

試薬・触媒・溶媒 2

HCID 887Methanol溶媒HCID 962Water溶媒

反応条件

温度
50 °C

実験手順

To a solution of methyl 4-((tetrahydro-2H-pyran-4-yl)oxy)benzoate (400 mg, 1.6 mmol) in MeOH (10 ml) was added a solution of NaOH (128 mg, 3.2 mmol) in H2O (4 mL) at 22° C. The mixture was stirred at 50° C. for 4 h. The mixture was concentrated and the residue was treated with water and extracted with EA. The water layer was treated with 2N HCl to pH=3. The water layer was then extracted with EA. The organic layer was washed with brine, dried over Na2SO4 and concentrated to give the title product which was used in next step without further purification (350 mg, Yield 98.6%). 1H NMR (CDCl3, 400 MHz): δ 8.08 (d, J=8.9 Hz, 2H), 6.98 (d, J=8.9 Hz, 2H), 4.64 (tt, J=7.7, 3.8 Hz, 1H), 3.95-4.09 (m, 2H), 3.64 (ddd, J=11.6, 8.2, 3.3 Hz, 2H), 2.01-2.13 (m, 2H), 1.78-1.93 (m, 2H).

後処理

  1. concentrationThe mixture was concentrated
  2. additionthe residue was treated with water
  3. extractionextracted with EA
  4. additionThe water layer was treated with 2N HCl to pH=3
  5. extractionThe water layer was then extracted with EA
  6. washThe organic layer was washed with brine
  7. dry with materialdried over Na2SO4
  8. concentrationconcentrated

出典と根拠

ORDレコード
ord-d252798653164d93bae0abec1a538c55
出典データセット
uspto-grants-2015_03
特許番号
US08993555B2

反応ノート

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