Potassium Hydroxide → 2-(3-Chloropropylthio)-5-nitrobenzenamine

HRID 1764837

反応式

HRID 1764837 の反応式
[NH2:1][C:2]1[CH:7]=[C:6]([N+:8]([O-:10])=[O:9])[CH:5]=[CH:4][C:3]=1F.[Cl:12][CH2:13][CH2:14][CH2:15][SH:16].[OH-].[K+]>COCCOC>[Cl:12][CH2:13][CH2:14][CH2:15][S:16][C:3]1[CH:4]=[CH:5][C:6]([N+:8]([O-:10])=[O:9])=[CH:7][C:2]=1[NH2:1]

参加物

5

反応物 3

HCID 14797Potassium HydroxideHCID 677852-Fluoro-5-nitroanilineHCID 871343-Chloropropanethiol

生成物 1

HCID 227355412-(3-Chloropropylthio)-5-nitrobenzenamine収率 17%

試薬・触媒・溶媒 1

HCID 80711,2-Dimethoxyethane溶媒

実験手順

2-amino-4-nitro-fluorbenzene (500 mg, 3.2 mmol), 3-chloro-1 propanethiol (354 mg, 3.2 mmol), and potassium hydroxide (269 mg, 4.8 mmol) were mixed together in ethylene glycol dimethyl ether (6.4 mL) and heated at reflux for 72 hours. The reaction was filtered and the filtercake washed with chloroform. The filtrate was concentrated and purified by flash column chromatography on 10 g if silica gel and eluted with 3% methanol in chloroform to give 2-[(3-chloropropyl)sulfanyl]-5-nitrophenylamine (130 mg, 17%). 1H NMR (CDCl3, 300 MHz): δ7.49-7.48 (m, 2H), 7.38 (dd, 1H, J=7.7 Hz, J=7.7 Hz), 4.55 (s-broad, 2H), 3.64 (t, 2H, J=6.2 Hz), 3.03 (t, 2H, J=7 Hz), 2.00 (q, 2H, J=7 Hz) ppm. Mass Spec (ESI):264 (base M+H).

後処理

  1. temperatureheated
  2. temperatureat reflux for 72 hours
  3. filtrationThe reaction was filtered
  4. washthe filtercake washed with chloroform
  5. concentrationThe filtrate was concentrated
  6. custompurified by flash column chromatography on 10 g if silica gel
  7. washeluted with 3% methanol in chloroform

出典と根拠

ORDレコード
ord-91eb3af9f33c4c52933dcc80fdd64440
出典データセット
uspto-grants-2007_06
特許番号
USRE039679E1

関連ノート

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