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Triethylamine → (RS)-2-(4-chlorobenzenesulfonylamino)-N-(4-(ethoxycarbonylmethyl)phenyl)butanamide

HRID 266358
ノート
印刷プレビュー

反応式

HRID 266358 の反応式
C(N(CC)CC)C.Cl.[NH2:9][C:10]1[CH:15]=[CH:14][C:13]([CH2:16][C:17]([O:19][CH2:20][CH3:21])=[O:18])=[CH:12][CH:11]=1.[I-].C[N+]1C=CC=CC=1Cl.[Cl:31][C:32]1[CH:37]=[CH:36][C:35]([S:38]([NH:41][CH:42]([CH2:46][CH3:47])[C:43](O)=[O:44])(=[O:40])=[O:39])=[CH:34][CH:33]=1>C(Cl)(Cl)Cl>[Cl:31][C:32]1[CH:33]=[CH:34][C:35]([S:38]([NH:41][CH:42]([CH2:46][CH3:47])[C:43]([NH:9][C:10]2[CH:11]=[CH:12][C:13]([CH2:16][C:17]([O:19][CH2:20][CH3:21])=[O:18])=[CH:14][CH:15]=2)=[O:44])(=[O:39])=[O:40])=[CH:36][CH:37]=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 1670692-Chloro-1-methylpyridinium iodideHCID 3266285(RS)-2-(4-chlorobenzenesulfonylamino)butanoic acidHCID 24192282Ethyl (4-aminophenyl)acetate--hydrogen chloride (1/1)

生成物 1

HCID 19032983(RS)-2-(4-chlorobenzenesulfonylamino)-N-(4-(ethoxycarbonylmethyl)phenyl)butanamide収率 16.7%

試薬・触媒・溶媒 1

HCID 6212Chloroform溶媒

実験手順

Triethylamine (1.99 ml), ethyl 4-aminophenylacetate hydrochloride (699 mg), and 1-methyl-2-chloropyridinium iodide (1.1 g) were added to a solution of (RS)-2-(4-chlorobenzenesulfonylamino)butanoic acid (1 g) in chloroform (30 ml), and the whole was heated under reflux for 2 hours under argon. The reaction mixture was concentrated under reduced pressure. After adding 1N HCl, the residue was extracted with ethyl acetate. The combined ethyl acetate layers were washed with a saturated saline solution, and dried over Na2SO4. The solvent was evaporated under reduced pressure. The residue was purified by column chromatography (silica gel 70 g, hexane/ethyl acetate=2/1) to give (RS)-2-(4-chlorobenzenesulfonylamino)-N-(4-(ethoxycarbonylmethyl) phenyl)butanamide (237 mg).

後処理

  1. temperaturethe whole was heated
  2. temperatureunder reflux for 2 hours under argon
  3. concentrationThe reaction mixture was concentrated under reduced pressure
  4. additionAfter adding 1N HCl
  5. extractionthe residue was extracted with ethyl acetate
  6. washThe combined ethyl acetate layers were washed with a saturated saline solution
  7. dry with materialdried over Na2SO4
  8. customThe solvent was evaporated under reduced pressure
  9. customThe residue was purified by column chromatography (silica gel 70 g, hexane/ethyl acetate=2/1)

出典と根拠

ORDレコード
ord-a74198e9447c4141b53b3f8232f4f299
出典データセット
uspto-grants-1997_07
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US05650428

反応ノート

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