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

HRID 573600

反応式

HRID 573600 の反応式
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

参加物

7

反応条件

温度
120 °C

実験手順

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),

後処理

  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

出典と根拠

ORDレコード
ord-b1da736e096c4c6d9ff687d87264a164
出典データセット
uspto-grants-2015_05
特許番号
US09029545B2

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