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Hydrochloric Acid → 4-(Aminomethyl)-2,6-dimethylphenol

HRID 2353594
ノート
印刷プレビュー

反応式

HRID 2353594 の反応式
[H-].[H-].[H-].[H-].[Li+].[Al+3].[OH:7][C:8]1[C:15]([CH3:16])=[CH:14][C:11]([C:12]#[N:13])=[CH:10][C:9]=1[CH3:17].Cl>C(OCC)C.C1COCC1.O>[NH2:13][CH2:12][C:11]1[CH:10]=[C:9]([CH3:17])[C:8]([OH:7])=[C:15]([CH3:16])[CH:14]=1
参加物実験手順後処理出典と根拠反応ノート

参加物

7

反応物 3

HCID 313Hydrochloric AcidHCID 201763,5-Dimethyl-4-hydroxybenzonitrileHCID 21226445Aluminium lithium hydride

生成物 1

HCID 136687374-(Aminomethyl)-2,6-dimethylphenol収率 23.9%

試薬・触媒・溶媒 3

HCID 962Water溶媒2 回HCID 3283Diethyl Ether
溶媒
2 回
HCID 8028Tetrahydrofuran溶媒

実験手順

To a suspension of LiAlH4 (1.51 g, 39.8 mmol) in diethyl ether (40 mL) a solution of 4-hydroxy-3,5-dimethylbenzonitrile (4.89 g, 33.2 mmol) in diethyl ether (20 mL) and THF (10 mL) is added dropwise at rt. The mixture is stirred at rt for 22 h before it is cooled with an ice-bath and carefully treated with water (10 mL), acidified with 25% aq. HCl and diluted with water (30 mL). The mixture is extracted with diethyl ether. The etheral extract is discarded. The aqueous phase is basified to pH˜8 by adding solid NaHCO3, saturated with NaCl, and extracted with diethyl ether followed by EA. The combined organic extracts are dried over MgSO4 and evaporated to leave 4-aminomethyl-2,6-dimethyl-phenol (1.20 g) as a solid. LC-MS: tR=0.51 min, [M+1]+=152.19.

後処理

  1. additionis added dropwise at rt
  2. temperatureis cooled with an ice-bath
  3. extractionThe mixture is extracted with diethyl ether
  4. extractionThe etheral extract
  5. additionby adding solid NaHCO3
  6. extractionsaturated with NaCl, and extracted with diethyl ether
  7. dry with materialThe combined organic extracts are dried over MgSO4
  8. customevaporated

出典と根拠

ORDレコード
ord-e6bdb5d882d54531a3d68b2123164792
出典データセット
uspto-grants-2010_07
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07750040B2

反応ノート

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