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

HRID 2353594
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HRID 2353594 반응식
[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
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

7

반응물 3

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

생성물 1

HCID 136687374-(Aminomethyl)-2,6-dimethylphenol수율 23.9%

시약·촉매·용매 3

HCID 962Water용매2회HCID 3283Diethyl Ether
용매
2회
HCID 8028Tetrahydrofuran용매

실험 절차

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.

후처리

  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

출처 및 근거

ORD 기록
ord-e6bdb5d882d54531a3d68b2123164792
출처 데이터셋
uspto-grants-2010_07
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07750040B2

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