1,2-Dichloroethane → 3-(2-Benzylaminocarbonyl-4-benzyloxy-phenyl)-acrylic acid tert-butyl ester

HRID 1181108ノート

反応式

HRID 1181108 の反応式
[CH2:1]([O:8][C:9]1[CH:10]=[CH:11][C:12]([CH:18]=[CH:19][C:20]([O:22][C:23]([CH3:26])([CH3:25])[CH3:24])=[O:21])=[C:13]([CH:17]=1)[C:14]([OH:16])=O)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH2:27]([NH2:34])[C:28]1[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=1.C(Cl)CCl>C(Cl)Cl.CN(C1C=CN=CC=1)C>[C:23]([O:22][C:20](=[O:21])[CH:19]=[CH:18][C:12]1[CH:11]=[CH:10][C:9]([O:8][CH2:1][C:2]2[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=2)=[CH:17][C:13]=1[C:14]([NH:34][CH2:27][C:28]1[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=1)=[O:16])([CH3:25])([CH3:24])[CH3:26]

参加物

6

反応物 3

HCID 111,2-DichloroethaneHCID 7504BenzylamineHCID 69232261HCID 69232261、化合物

生成物 1

HCID 692309383-(2-Benzylaminocarbonyl-4-benzyloxy-phenyl)-acrylic acid tert-butyl ester収率 40%

試薬・触媒・溶媒 2

HCID 142844-(Dimethylamino)pyridine触媒HCID 6344Dichloromethane溶媒

実験手順

To a solution of 5-benzyloxy-2-(2-tert-butoxycarbonyl-vinyl)-benzoic acid (1.45 g, 4.09 mmol) in CH2Cl2 (40 mL) was added benzylamine (0.613 g, 5.73 mmol), EDC (1.254 g, 6.54 mmol), and DMAP (1.00 g, 8.18 mmol). The resulting mixture was stirred at room temperature for 12 h, washed with aqueous NH4Cl (50 mL), and extracted with CH2Cl2 (2×50 mL). The combined organic layers were dried (Na2SO4) and concentrated. The residue was then purified using silica gel chromatography (hexanes/EtOAc 8/2) to afford the title compound as an oil (720 mg, 40%). 1H NMR (400 MHz, CDCl3): δ 1.52 (s, 9H), 4.63 (d, 2H, J=5.5 Hz), 5.09 (s, 2H), 5.97 (br s, 1H), 6.22 (d, 1H, J=15.6 Hz), 7.01 (dd, 1H, J=2.7, 8.6 Hz), 7.10 (d, 1H, J=2.8 Hz), 7.28-7.42 (m, 10H), 7.55 (d, 1H, J=9.0 Hz), 7.88 (d, 1H, J=16.0 Hz).

後処理

  1. washwashed with aqueous NH4Cl (50 mL)
  2. extractionextracted with CH2Cl2 (2×50 mL)
  3. dry with materialThe combined organic layers were dried (Na2SO4)
  4. concentrationconcentrated
  5. customThe residue was then purified

出典と根拠

ORDレコード
ord-538107d3fec1407684dd9f50aceb9e8a
出典データセット
uspto-grants-2007_10
特許番号
US07282501B2

反応ノート

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