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Triethylamine → 7-(5-Chloro-2-methoxyphenyl)-8-chloromethyl-1,3,3-trimethyl-3,4-dihydro-1H-quinoxalin-2-one

HRID 1038479
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HRID 1038479 반응식
[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([O:24][CH3:25])=[C:6]([C:8]2[C:17]([CH2:18]O)=[C:16]3[C:11]([NH:12][C:13]([CH3:23])([CH3:22])[C:14](=[O:21])[N:15]3[CH3:20])=[CH:10][CH:9]=2)[CH:7]=1.C(N(CC)CC)C.CS([Cl:37])(=O)=O.C(OCC)(=O)C>ClCCl>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([O:24][CH3:25])=[C:6]([C:8]2[C:17]([CH2:18][Cl:37])=[C:16]3[C:11]([NH:12][C:13]([CH3:22])([CH3:23])[C:14](=[O:21])[N:15]3[CH3:20])=[CH:10][CH:9]=2)[CH:7]=1
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참가 물질

6

반응물 4

HCID 8471TriethylamineHCID 8857Ethyl AcetateHCID 31297Methanesulfonyl chlorideHCID 576717857-(5-Chloro-2-methoxyphenyl)-8-hydroxymethyl-1,3,3-trimethyl-3,4-dihydro-1H-quinoxalin-2-one

생성물 1

HCID 576717647-(5-Chloro-2-methoxyphenyl)-8-chloromethyl-1,3,3-trimethyl-3,4-dihydro-1H-quinoxalin-2-one수율 81%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

7-(5-Chloro-2-methoxyphenyl)-8-hydroxymethyl-1,3,3-trimethyl-3,4-dihydro-1H-quinoxalin-2-one (Reference Compound No. 13-1, 1.34 g, 3.71 mmol) was dissolved in anhydrous dichloromethane (19 mL), and triethylamine (621 μL, 4.46 mmol) and methanesulfonyl chloride (316 μL, 4.08 mmol) were added thereto successively. The reaction mixture was stirred at room temperature overnight. Ethyl acetate (200 mL) was added to the reaction mixture, washed with water (200 mL), dried over anhydrous magnesium sulfate, and then the solvent was removed under reduced pressure. The obtained residue was purified by silica gel column chromatography (hexane-ethyl acetate) to give the titled reference compound (1.14 g) as a colorless amorphous product. (Yield 81%)

후처리

  1. washwashed with water (200 mL)
  2. dry with materialdried over anhydrous magnesium sulfate
  3. customthe solvent was removed under reduced pressure
  4. customThe obtained residue was purified by silica gel column chromatography (hexane-ethyl acetate)

출처 및 근거

ORD 기록
ord-66f9824bd5b8469eae30af627d4577db
출처 데이터셋
uspto-grants-2013_10
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08551991B2

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