Sodium Nitrite → Ethyl 1-(6-chloro-5-(2,2,2-trifluoroethoxy)-4'-(trifluoromethyl)biphenyl-3-yl)cyclobutanecarboxylate

HRID 1183695노트

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HRID 1183695 반응식
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]([C:18]2([C:22]([O:24][CH2:25][CH3:26])=[O:23])[CH2:21][CH2:20][CH2:19]2)=[CH:4][C:3]=1[O:27][CH2:28][C:29]([F:32])([F:31])[F:30].N([O-])=O.[Na+].CC#N.O.[ClH:41]>O.Cl[Cu]>[Cl:41][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]([C:18]2([C:22]([O:24][CH2:25][CH3:26])=[O:23])[CH2:21][CH2:20][CH2:19]2)=[CH:4][C:3]=1[O:27][CH2:28][C:29]([F:32])([F:31])[F:30]

참가 물질

6

반응물 3

HCID 23668193Sodium NitriteHCID 57995651Ethyl 1-(6-amino-5-(2,2,2-trifluoroethoxy)-4'-(trifluoromethyl)biphenyl-3-yl)cyclobutanecarboxylateHCID 86615699Acetonitrile-hcl-water

생성물 1

HCID 57995543Ethyl 1-(6-chloro-5-(2,2,2-trifluoroethoxy)-4'-(trifluoromethyl)biphenyl-3-yl)cyclobutanecarboxylate

시약·촉매·용매 2

HCID 62652Cuprous chloride촉매HCID 962Water용매2회

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온도
70 °C

실험 절차

Ethyl 1-(6-amino-5-(2,2,2-trifluoroethoxy)-4′-(trifluoromethyl)biphenyl-3-yl)cyclobutanecarboxylate (0.280 g, 0.64 mmol) was dissolved in a mixture of MeCN/H2O/HCl 10 mL/10 mL/4 mL at 0° C. A solution of NaNO2 (0.066 g, 0.96 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 (0.32 g, 3.2 mmol) in water (2 mL) was added drop wise at 0° C. The reaction mixture was heated to 70° C. for 1 h and the solvent was evaporated. 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 to give oil. The oil was purified by chromatography over silica gel (hexane/EtOAc) to give ethyl 1-(6-chloro-5-(2,2,2-trifluoroethoxy)-4′-(trifluoromethyl)biphenyl-3-yl)cyclobutanecarboxylate as a yellow oil (0.110 g).

후처리

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

출처 및 근거

ORD 기록
ord-bc08856976614fa7b10ebe60453443d3
출처 데이터셋
uspto-grants-2014_03
특허 번호
US08664249B2

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