Dicyclohexylcarbodiimide → 3-Dimethylamino-1,1-diphenyl-propan-2-ol

HRID 436947노트

반응식

HRID 436947 반응식
[CH3:1][N:2]([CH3:19])[CH2:3][CH:4]([OH:18])[CH:5]([C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1)[C:6]1[CH:11]=[CH:10][CH:9]=[CH:8][CH:7]=1.Cl.[CH2:21]([N:23]([CH2:30][CH3:31])[CH2:24][CH2:25][CH2:26][C:27]([OH:29])=[O:28])[CH3:22].C1(N=C=NC2CCCCC2)CCCCC1>ClCCl>[CH2:30]([N:23]([CH2:21][CH3:22])[CH2:24][CH2:25][CH2:26][C:27]([O-:29])=[O:28])[CH3:31].[CH3:19][N:2]([CH3:1])[CH2:3][CH:4]([OH:18])[CH:5]([C:12]1[CH:13]=[CH:14][CH:15]=[CH:16][CH:17]=1)[C:6]1[CH:11]=[CH:10][CH:9]=[CH:8][CH:7]=1

참가 물질

6

반응물 3

HCID 10868DicyclohexylcarbodiimideHCID 125491223-Dimethylamino-1,1-diphenyl-propan-2-olHCID 137955394-(Diethylamino)butanoic acid hydrochloride

생성물 2

HCID 125491223-Dimethylamino-1,1-diphenyl-propan-2-olHCID 203090674-Diethylaminobutyrate

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

A solution of 3-dimethylamino-1,1-diphenyl-propan-2-ol (2.55 g.), 4-diethylaminobutyric acid hydrochloride (1.95 g.) and dicyclohexylcarbodiimide (2.1 g.) in dichloromethane (50 ml.) was stirred at room temperature for 5 days. Dicyclohexylurea was filtered off and the filtrate concentrated. The residue was dissolved in dilute hydrochloric acid and ether. The acid extract was basified; isolation through ether in the normal manner gave an oil which was chromatographed as alumina (200 g.). Elution with progressively graded mixtures of light petroleum and ether gave the 4-diethylaminobutyrate of 3-dimethylamino-1,1-diphenyl-propan-2-ol isolated as the dihydrochloride (41%) as a glass.

후처리

  1. filtrationDicyclohexylurea was filtered off
  2. concentrationthe filtrate concentrated
  3. dissolutionThe residue was dissolved in dilute hydrochloric acid
  4. extractionThe acid extract
  5. customisolation through ether in the normal manner gave an oil which
  6. customwas chromatographed as alumina (200 g.)
  7. washElution with progressively graded mixtures of light petroleum and ether

출처 및 근거

ORD 기록
ord-e3cd0594be4744aa8d0ddb019b28ca0d
출처 데이터셋
uspto-grants-1977_06
특허 번호
US04028415

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