Ethyl Acetate → 3-(4-(Cyclohexyloxy)phenyl)-5-methylpyrazin-2-amine

HRID 1405848노트

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HRID 1405848 반응식
Br[C:2]1[C:3]([NH2:9])=[N:4][CH:5]=[C:6]([CH3:8])[N:7]=1.[CH:10]1([O:16][C:17]2[CH:22]=[CH:21][C:20](B(O)O)=[CH:19][CH:18]=2)[CH2:15][CH2:14][CH2:13][CH2:12][CH2:11]1.C(=O)([O-])[O-].[Na+].[Na+].CCOC(C)=O>COCCOC.O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH:17]1([O:16][C:10]2[CH:15]=[CH:14][C:13]([C:2]3[C:3]([NH2:9])=[N:4][CH:5]=[C:6]([CH3:8])[N:7]=3)=[CH:12][CH:11]=2)[CH2:22][CH2:21][CH2:20][CH2:19][CH2:18]1

참가 물질

8

반응물 4

HCID 8857Ethyl AcetateHCID 10340Sodium CarbonateHCID 98990432-Amino-3-bromo-5-methylpyrazineHCID 222898184-Cyclohexyloxy-benzeneboronic acid

생성물 1

HCID 667484133-(4-(Cyclohexyloxy)phenyl)-5-methylpyrazin-2-amine수율 52.2%

시약·촉매·용매 3

HCID 178418397HCID 178418397, 화합물촉매HCID 962Water용매2회HCID 80711,2-Dimethoxyethane용매

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온도
100 °C

실험 절차

Tetrakis(triphenylphosphine)palladium(0) (55.3 mg) was added to a suspension of 3-bromo-5-methylpyrazin-2-amine (300 mg), 4-(cyclohexyloxy)phenylboronic acid (456 mg) and sodium carbonate (338 mg) in DME (15 mL) and water (3 mL) and the mixture was stirred at 100° C. under nitrogen for 2 hr. Water and EtOAc were added and the organic layer was separated, washed with brine, dried over anhydrous sodium sulfate and concentrated in vacuo. The residue was purified by column chromatography (silica gel, eluted with EtOAc in hexane) and washed with hexane/IPE to give the title compound (236 mg) as a white powder.

후처리

  1. customthe organic layer was separated
  2. washwashed with brine
  3. dry with materialdried over anhydrous sodium sulfate
  4. concentrationconcentrated in vacuo
  5. customThe residue was purified by column chromatography (silica gel, eluted with EtOAc in hexane)
  6. washwashed with hexane/IPE

출처 및 근거

ORD 기록
ord-cd80f658f75e4402b8a22bc2cbc73a24
출처 데이터셋
uspto-grants-2014_12
특허 번호
US08916551B2

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