Potassium Carbonate → 1-(6-Nitro-pyridin-3-yl)-azetidin-3-ol

HRID 1022199ノート

反応式

HRID 1022199 の反応式
F[C:2]1[CH:3]=[CH:4][C:5]([N+:8]([O-:10])=[O:9])=[N:6][CH:7]=1.C([O-])([O-])=O.[K+].[K+].Cl.[NH:18]1[CH2:21][CH:20]([OH:22])[CH2:19]1>C(#N)C>[N+:8]([C:5]1[N:6]=[CH:7][C:2]([N:18]2[CH2:21][CH:20]([OH:22])[CH2:19]2)=[CH:3][CH:4]=1)([O-:10])=[O:9]

参加物

5

反応物 3

HCID 11430Potassium CarbonateHCID 27592903-Hydroxyazetidine hydrochlorideHCID 167481095-Fluoro-2-nitropyridine

生成物 1

HCID 592909581-(6-Nitro-pyridin-3-yl)-azetidin-3-ol収率 73%

試薬・触媒・溶媒 1

HCID 6342Acetonitrile溶媒

反応条件

温度
60 °C

実験手順

A 100-mL single-neck round-bottomed flask equipped with a magnetic stirrer and a reflux condenser was charged with acetonitrile (50 mL), 5-fluoro-2-nitropyridine (1.2 g, 7.9 mmol), K2CO3 (2.1 g, 15.8 mmol), and azetidin-3-ol hydrochloride (1.3 g, 11.9 mmol). The mixture was heated at 60° C. for 1 h. After this time the reaction was cooled to room temperature. It was then filtered and the filtrate was evaporated under reduced pressure. The residue was purified by silica-gel column chromatography eluting with dichloromethane/methanol (50:1 to 20:1) to afford 314a (1.1 g, 73%) as a yellow solid. MS-ESI: [M+H]+ 196.0.

後処理

  1. customA 100-mL single-neck round-bottomed flask equipped with a magnetic stirrer and a reflux condenser
  2. temperatureAfter this time the reaction was cooled to room temperature
  3. filtrationIt was then filtered
  4. customthe filtrate was evaporated under reduced pressure
  5. customThe residue was purified by silica-gel column chromatography
  6. washeluting with dichloromethane/methanol (50:1 to 20:1)

出典と根拠

ORDレコード
ord-d05cfa45baa4436c90c260c1469f3158
出典データセット
uspto-grants-2014_05
特許番号
US08716274B2

反応ノート

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