Morpholine → 4-(5-Bromopyridin-3-yl)morpholine

HRID 573600

반응식

HRID 573600 반응식
Br[C:2]1[CH:3]=[N:4][CH:5]=[C:6]([Br:8])[CH:7]=1.CC(C)([O-])C.[Na+].[NH:15]1[CH2:20][CH2:19][O:18][CH2:17][CH2:16]1>C1(C)C=CC=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd].C1C=CC(P(C2C(C3C(P(C4C=CC=CC=4)C4C=CC=CC=4)=CC=C4C=3C=CC=C4)=C3C(C=CC=C3)=CC=2)C2C=CC=CC=2)=CC=1>[Br:8][C:6]1[CH:7]=[C:2]([N:15]2[CH2:20][CH2:19][O:18][CH2:17][CH2:16]2)[CH:3]=[N:4][CH:5]=1

참가 물질

7

반응물 3

HCID 8083MorpholineHCID 693693,5-DibromopyridineHCID 23676156Sodium t-butoxide

생성물 1

HCID 467396144-(5-Bromopyridin-3-yl)morpholine수율 89.3%

시약·촉매·용매 3

HCID 634876Binap, (A+-)-촉매HCID 9811564Bis(dibenzylideneacetone)palladium촉매HCID 1140Toluene용매

반응 조건

온도
120 °C

실험 절차

A mixture of 3,5-dibromopyridine (2.121 g, 8.95 mmol), BINAP (0.279 g, 0.448 mmol), Pd2(dba)3 (0.137 g, 0.149 mmol) and sodium tert-butoxide (1.434 g, 14.92 mmol) in toluene (50 mL) was added morpholine (0.65 mL, 7.46 mmol). The mixture was then heated at 120° C. for ca. 5 h. After cooling to RT, the reaction mixture was filtered through celite and the filtrate was concentrated. The residue was purified by normal phase chromatography, eluting with a gradient of 0-50% ethyl acetate in DCM, to give the title compound (1.62 g). LCMS (A) m/z: 243/245 [M+1]+, Rt 0.83 min (acidic),

후처리

  1. temperatureAfter cooling to RT
  2. filtrationthe reaction mixture was filtered through celite
  3. concentrationthe filtrate was concentrated
  4. customThe residue was purified by normal phase chromatography
  5. washeluting with a gradient of 0-50% ethyl acetate in DCM

출처 및 근거

ORD 기록
ord-b1da736e096c4c6d9ff687d87264a164
출처 데이터셋
uspto-grants-2015_05
특허 번호
US09029545B2

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