2-Bromopyridine → HCID 69085397, 화합물

HRID 594222노트

반응식

HRID 594222 반응식
Br[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][N:3]=1.[Cl:8][C:9]1[CH:10]=[C:11](B(O)O)[CH:12]=[C:13]([C:15]([O:17][CH3:18])=[O:16])[CH:14]=1.C([O-])([O-])=O.[K+].[K+].CCOC(C)=O>C1COCC1.O.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[Cl:8][C:9]1[CH:14]=[C:13]([CH:12]=[C:11]([C:2]2[CH:7]=[CH:6][CH:5]=[CH:4][N:3]=2)[CH:10]=1)[C:15]([O:17][CH3:18])=[O:16]

참가 물질

8

반응물 4

HCID 79732-BromopyridineHCID 8857Ethyl AcetateHCID 11430Potassium CarbonateHCID 44118784[3-Chloro-5-(methoxycarbonyl)phenyl]boronic acid

생성물 1

HCID 69085397HCID 69085397, 화합물

시약·촉매·용매 3

HCID 178418476HCID 178418476, 화합물촉매HCID 962Water용매2회HCID 8028Tetrahydrofuran용매

실험 절차

A mixture of commercially available 2-bromopyridine (294 mg; 1.86 mmol), 3-chloro-5-(methoxycarbonyl)phenylboronic acid (400 mg; 1.86 mmol), K2CO3 (515 mg; 3.73 mmol), and PdCl2(PPh3)2 (130 mg; 0.18 mmol) in THF (4 ml) and water (4 ml) was stirred at rt, under nitrogen, for 17 h. Water and AcOEt were added. The separated aq. layer was further extracted with AcOEt. The mixed organic layers were washed with brine, dried over anh. MgSO4, filtered, and concentrated to dryness under reduced pressure. Purification by FC (DCM/MeOH=15/1) afforded methyl 3-chloro-5-(pyridin-2-yl)benzoate as a colorless solid. LC-MS (conditions A): tR=0.79 min.; [M+H]+: 247.95 g/mol.

후처리

  1. extractionThe separated aq. layer was further extracted with AcOEt
  2. washThe mixed organic layers were washed with brine
  3. dry with materialdried over anh. MgSO4
  4. filtrationfiltered
  5. concentrationconcentrated to dryness under reduced pressure
  6. customPurification by FC (DCM/MeOH=15/1)

출처 및 근거

ORD 기록
ord-51acc2e8b50849468e22a86db32060f8
출처 데이터셋
uspto-grants-2016_01
특허 번호
US09242970B2

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