Acetic Acid → HCID 178525127、化合物

HRID 1270820ノート

反応式

HRID 1270820 の反応式
[CH2:1]([O:8][C:9]([N:11]1[CH2:16][CH2:15][CH2:14][CH2:13][CH:12]1[C:17](=O)[NH:18][CH2:19][C:20](=O)[C:21]1[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=1)=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C([O-])(=O)C.[NH4+:33].CC(O)=O.C1(C)C(C)=CC=CC=1>[Cl-].[Na+].O>[CH2:1]([O:8][C:9]([N:11]1[CH2:16][CH2:15][CH2:14][CH2:13][CH:12]1[C:17]1[NH:18][CH:19]=[C:20]([C:21]2[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=2)[N:33]=1)=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

参加物

6

反応物 4

HCID 176Acetic AcidHCID 7237O-XyleneHCID 517165Ammonium AcetateHCID 235707182-(2-Oxo-2-phenyl-ethylcarbamoyl)-piperidine-1-carboxylic acid benzyl ester

生成物 1

HCID 178525127HCID 178525127、化合物

試薬・触媒・溶媒 1

HCID 57417360Sodium chloride; water溶媒

反応条件

温度
165 °C

実験手順

2-(2-Oxo-2-phenyl-ethylcarbamoyl)-piperidine-1-carboxylic acid benzyl ester (22.83 g, 60 mmol), NH4OAc (ammonium acetate) (63.5 g, 824 mmol), AcOH (acetic acid) (30 mL), and xylene (350 mL) were mixed at room temperature, and with stirring the reaction mixture was warmed in an oil bath at 165° C. for about 6 hours. The reaction mixture was then cooled to room temperature and poured into brine. The organic phase was dried over MgSO4, filtered, and concentrated under reduced pressure to yield 31.24 g of off white powder. This sample was triturated in ethyl ether (100 mL), filtered, and rinsed liberally with ethyl ether to yield 15.12 g (70% over two steps) of the desired product 2-(4-phenyl-1H-imidazol-2-yl)-piperidine-1-carboxylic acid benzyl ester as a white solid. HPLC analysis showed the compound to be 100% pure at 254 nm and 98.1% pure at 214 nm.

後処理

  1. temperatureThe reaction mixture was then cooled to room temperature
  2. dry with materialThe organic phase was dried over MgSO4
  3. filtrationfiltered
  4. concentrationconcentrated under reduced pressure
  5. customto yield 31.24 g of off white powder
  6. customThis sample was triturated in ethyl ether (100 mL)
  7. filtrationfiltered
  8. washrinsed liberally with ethyl ether

出典と根拠

ORDレコード
ord-2f06edc357b344899a99cce581a9d35b
出典データセット
uspto-grants-2007_04
特許番号
US07202381B2

反応ノート

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