Sodium Iodide → (+/-)-Methyl(cis)-1-[2,5-bis(trifluoromethyl)benzyl]-2-[4-(trifluoromethyl)phenyl]piperidine-4-carboxylate

HRID 1869744

反応式

HRID 1869744 の反応式
[F:1][C:2]([F:20])([F:19])[C:3]1[CH:8]=[CH:7][C:6]([C@H:9]2[CH2:14][C@@H:13]([C:15]([O:17][CH3:18])=[O:16])[CH2:12][CH2:11][NH:10]2)=[CH:5][CH:4]=1.[F:21][C:22]([F:36])([F:35])[C:23]1[CH:30]=[CH:29][C:28]([C:31]([F:34])([F:33])[F:32])=[CH:27][C:24]=1[CH2:25]Br.[Na+].[I-].C([O-])([O-])=O.[K+].[K+]>CN(C=O)C.CCOC(C)=O.O>[F:21][C:22]([F:35])([F:36])[C:23]1[CH:30]=[CH:29][C:28]([C:31]([F:34])([F:32])[F:33])=[CH:27][C:24]=1[CH2:25][N:10]1[CH2:11][CH2:12][C@H:13]([C:15]([O:17][CH3:18])=[O:16])[CH2:14][C@@H:9]1[C:6]1[CH:5]=[CH:4][C:3]([C:2]([F:19])([F:1])[F:20])=[CH:8][CH:7]=1

参加物

8

反応条件

温度
150 °C

実験手順

(±)-Methyl(cis)-2-[4-(trifluoromethyl)phenyl]piperidine-4-carboxylate (Example (18b) (88 mg), 2,5-bis(trifluoromethyl)benzyl bromide (110 mg), NaI (25 mg) and K2CO3 (100 mg) in DMF (3 ml) were placed in a microwave tube and the contents were heated in the microwave oven for 20 min at 150° C. The cooled mixture was dispersed between water and EtOAc and the organic extracts were washed with sodium thiosulfate, brine, dried (MgSO4) and evaporated. The crude oil was purified by chromatography on silica using 5-8% EtOAc in hexane to yield a colourless oil (98 mg, 62%) which crystallized on standing. 1H NMR (400 MHz, CDCl3) δ: 1.81-1.89 (2H, m), 1.97 (1H, d, J 13.2), 2.09-2.17 (2H, m), 2.49-2.56 (1H, m), 2.94-2.96 (1H, m), 3.34 (1H, d, J 15.6), 3.40 (1H, dd, J 2.6, 11.3), 3.66 (4H, d, J 15.6), 7.53-7.59 (5H, m), 7.68 (1H, d, J 8.2), 8.19 (1H, s); M/Z (ES+) 514 (MH+).

後処理

  1. washthe organic extracts were washed with sodium thiosulfate, brine
  2. dry with materialdried (MgSO4)
  3. customevaporated
  4. customThe crude oil was purified by chromatography on silica using 5-8% EtOAc in hexane

出典と根拠

ORDレコード
ord-864491509d5a4c3287fbef81997926f5
出典データセット
uspto-grants-2009_12
特許番号
US07638629B2

関連ノート

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