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

HRID 871976
ノート
印刷プレビュー

反応式

HRID 871976 の反応式
[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
参加物実験手順後処理出典と根拠反応ノート

参加物

6

反応物 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

生成物 1

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

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

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%)

後処理

  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)

出典と根拠

ORDレコード
ord-24505f1017e6472482e9861579dc86e9
出典データセット
uspto-grants-2015_03
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08975256B2

反応ノート

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