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Ethyl vinyl ether → 15-Chloro-2-(1-ethoxyethoxy)3-(1-methylethyl)-6,10,14-trimethyl-3,5,9,13-pentadecatetraenenitrile

HRID 892641
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HRID 892641 반응식
[Cl:1][CH2:2][C:3]([CH3:24])=[CH:4][CH2:5][CH2:6][C:7]([CH3:23])=[CH:8][CH2:9][CH2:10][C:11]([CH3:22])=[CH:12][CH:13]=[C:14]([CH:19]([CH3:21])[CH3:20])[CH:15]([OH:18])[C:16]#[N:17].[CH:25]([O:27][CH2:28][CH3:29])=[CH2:26].C(=O)([O-])O.[Na+].CCCCCC.CCOCC>ClCCl>[Cl:1][CH2:2][C:3]([CH3:24])=[CH:4][CH2:5][CH2:6][C:7]([CH3:23])=[CH:8][CH2:9][CH2:10][C:11]([CH3:22])=[CH:12][CH:13]=[C:14]([CH:19]([CH3:20])[CH3:21])[CH:15]([O:18][CH:25]([O:27][CH2:28][CH3:29])[CH3:26])[C:16]#[N:17]
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참가 물질

6

반응물 4

HCID 8023Ethyl vinyl etherHCID 516892Sodium BicarbonateHCID 21584099Diethylether hexaneHCID 5450637515-Chloro-2-hydroxy-3-(1-methylethyl)-6,10,14-trimethyl-3,5,9,13 pentadecatetraenenitrile

생성물 1

HCID 5373709415-Chloro-2-(1-ethoxyethoxy)3-(1-methylethyl)-6,10,14-trimethyl-3,5,9,13-pentadecatetraenenitrile수율 87.6%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

To a solution of 15-chloro-2-hydroxy-3-(1-methylethyl)-6,10,14-trimethyl-3,5,9,13 pentadecatetraenenitrile (204 mg, 0.56 mmol) prepared in Reference Example 6 and ethyl vinyl ether (100 μl, 0.96 mmol) in dichloromethane (5 ml) is added a very small amount of paratoluenesulfonic acid while stirring under nitrogen atmosphere on an ice-water bath. After 10 minutes, to the mixture are added a saturated aqueous sodium hydrogencarbonate solution (15 ml) and n-hexane/ether (1:1) solution (20 ml) and the organic layer is separated. The aqueous layer is then extracted with n-hexane/ether (1:1) solution (20 ml) for several times. The organic layers are combined and dried over anhydrous sodium sulfate and the solvent is removed by distillation under reduced pressure. The resulting residue is purified by silca gel column chromatography (n-hexane/ethyl acetate =20:1) to give 15-chloro-2-(1-ethoxyethoxy)3-(1-methylethyl)-6,10,14-trimethyl-3,5,9,13-pentadecatetraenenitrile (207 mg, 85%).

후처리

  1. additionis added a very small amount of paratoluenesulfonic acid
  2. customthe organic layer is separated
  3. extractionThe aqueous layer is then extracted with n-hexane/ether (1:1) solution (20 ml) for several times
  4. dry with materialdried over anhydrous sodium sulfate
  5. customthe solvent is removed by distillation under reduced pressure
  6. customThe resulting residue is purified by silca gel column chromatography (n-hexane/ethyl acetate =20:1)

출처 및 근거

ORD 기록
ord-f1d50ab4d198432f890e491bff12e39f
출처 데이터셋
uspto-grants-1992_06
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US05118827

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