Diisopropylethylamine → 2-[4-(3-cyano-2-pyridinyl)-1-piperazinyl]-N-(3-nitrophenyl)acetamide

HRID 490160ノート

反応式

HRID 490160 の反応式
[N:1]1([C:7]2[C:12]([C:13]#[N:14])=[CH:11][CH:10]=[CH:9][N:8]=2)[CH2:6][CH2:5][NH:4][CH2:3][CH2:2]1.C(N(CC)C(C)C)(C)C.Cl[CH2:25][C:26]([NH:28][C:29]1[CH:34]=[CH:33][CH:32]=[C:31]([N+:35]([O-:37])=[O:36])[CH:30]=1)=[O:27]>C1(C)C=CC=CC=1>[C:13]([C:12]1[C:7]([N:1]2[CH2:2][CH2:3][N:4]([CH2:25][C:26]([NH:28][C:29]3[CH:34]=[CH:33][CH:32]=[C:31]([N+:35]([O-:37])=[O:36])[CH:30]=3)=[O:27])[CH2:5][CH2:6]2)=[N:8][CH:9]=[CH:10][CH:11]=1)#[N:14]

参加物

5

反応物 3

HCID 81531DiisopropylethylamineHCID 5320662-chloro-N-(3-nitrophenyl)acetamideHCID 27372032-(Piperazin-1-yl)pyridine-3-carbonitrile

生成物 1

HCID 104065762-[4-(3-cyano-2-pyridinyl)-1-piperazinyl]-N-(3-nitrophenyl)acetamide収率 25%

試薬・触媒・溶媒 1

HCID 1140Toluene溶媒

反応条件

温度
90 °C

実験手順

2-(1-Piperazinyl)-3-pyridinecarbonitrile (640 mg, 3.40 mmol) and N,N-diisopropylethylamine (1.0 mL) in toluene (15 mL) at room temperature were treated with N-chloroacetyl-3-nitroaniline (Lancaster, 610 mg, 2.84 mmol) and the reaction was heated at 90° C. for 18 hours. The mixture was allowed to cool to room temperature, transferred to a separatory funnel and washed with saturated aqueous sodium bicarbonate. The organic phase was dried (Na2SO4), filtered, and the filtrate concentrated under reduced pressure. The residue was purified by flash chromatography on silica gel (elution with 85% hexanes:ethyl acetate) to provide 256 mg (25% yield) of the title compound as a light tan solid. mp 143-145° C.; 1H NMR (300 MHz, DMSO-d6) δ 2.69 (m, 4H), 3.27 (s, 2H), 3.70 (m, 4H), 6.93 (dd, 1H, J=7.4, 5.0 Hz), 7.61 (dd, 1H, J=8.1, 8.1 Hz), 7.93 (br d, 1H, J=8.2 Hz), 8.06 (dd, 2H, J=7.8, 7.8 Hz), 8.42 (m, 1H), 8.70 (br s, 1H), 10.28 (br s, 1H); MS (DCI/NH3) m/e 367 (M+H)+; Anal. calcd for C18H18N6O3: C, 59.01; H, 4.95; N, 22.94. Found: C, 59.31; H, 5.25; N, 22.66.

後処理

  1. temperatureto cool to room temperature
  2. customtransferred to a separatory funnel
  3. washwashed with saturated aqueous sodium bicarbonate
  4. dry with materialThe organic phase was dried (Na2SO4)
  5. filtrationfiltered
  6. concentrationthe filtrate concentrated under reduced pressure
  7. customThe residue was purified by flash chromatography on silica gel (elution with 85% hexanes:ethyl acetate)

出典と根拠

ORDレコード
ord-cf62e6aef6b5469983396800bfc7cf32
出典データセット
uspto-grants-2009_05
特許番号
US07528134B2

反応ノート

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