Sodium Nitrite → Ethyl 2-(6-chloro-5-(2,2,2-trifluoroethoxy)-4'-(trifluoromethyl)biphenyl-3-yl)-3-cyclopropylpropanoate

HRID 1512478ノート

反応式

HRID 1512478 の反応式
N[C:2]1[C:7]([C:8]2[CH:13]=[CH:12][C:11]([C:14]([F:17])([F:16])[F:15])=[CH:10][CH:9]=2)=[CH:6][C:5]([CH:18]([CH2:24][CH:25]2[CH2:27][CH2:26]2)[C:19]([O:21][CH2:22][CH3:23])=[O:20])=[CH:4][C:3]=1[O:28][CH2:29][C:30]([F:33])([F:32])[F:31].N([O-])=O.[Na+].CC#N.O.[ClH:42]>O.Cl[Cu]>[Cl:42][C:2]1[C:7]([C:8]2[CH:13]=[CH:12][C:11]([C:14]([F:17])([F:16])[F:15])=[CH:10][CH:9]=2)=[CH:6][C:5]([CH:18]([CH2:24][CH:25]2[CH2:27][CH2:26]2)[C:19]([O:21][CH2:22][CH3:23])=[O:20])=[CH:4][C:3]=1[O:28][CH2:29][C:30]([F:33])([F:32])[F:31]

参加物

6

反応物 3

HCID 23668193Sodium NitriteHCID 57995630Ethyl 2-(6-amino-5-(2,2,2-trifluoroethoxy)-4'-(trifluoromethyl)biphenyl-3-yl)-3-cyclopropylpropanoateHCID 86615699Acetonitrile-hcl-water

生成物 1

HCID 57995550Ethyl 2-(6-chloro-5-(2,2,2-trifluoroethoxy)-4'-(trifluoromethyl)biphenyl-3-yl)-3-cyclopropylpropanoate

試薬・触媒・溶媒 2

HCID 62652Cuprous chloride触媒HCID 962Water溶媒2 回

反応条件

温度
90 °C

実験手順

Ethyl 2-(6-amino-5-(2,2,2-trifluoroethoxy)-4′-(trifluoromethyl)biphenyl-3-yl)-3-cyclopropylpropanoate (0.85 g, 1.78 mmol) was dissolved in a mixture of MeCN/H2O/HCl 15 mL/15 mL/2 mL at 0° C. A solution of NaNO2 (0.185 g, 2.68 mmol) in water (2 mL) was added drop wise at 0° C., and the reaction mixture was stirred for 40 min, at the same temperature. A solution of CuCl (1.8 g, 17.8 mmol) in water (10 mL) was added drop wise at 0° C. The reaction mixture was heated to 90° C. for 2 h. The reaction mixture was extracted with EtOAc (3×50 mL), and the combined organic layers were washed with water (50 mL) followed by brine (50 mL). The solution was dried over Na2SO4, filtered and concentrated under reduced pressure to give an oil. The oil was purified by chromatography over silica gel (hexane/EtOAc) to give ethyl 2-(6-chloro-5-(2,2,2-trifluoroethoxy)-4′-(trifluoromethyl)biphenyl-3-yl)-3-cyclopropylpropanoate (0.528 g) as a yellow oil.

後処理

  1. extractionThe reaction mixture was extracted with EtOAc (3×50 mL)
  2. washthe combined organic layers were washed with water (50 mL)
  3. dry with materialThe solution was dried over Na2SO4
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customto give an oil
  7. customThe oil was purified by chromatography over silica gel (hexane/EtOAc)

出典と根拠

ORDレコード
ord-1287ed0f3e964f7da19e0bddf5e9b75d
出典データセット
uspto-grants-2012_07
特許番号
US08217064B2

反応ノート

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