Nitrogen → tert-butyl (E)-3-(8-oxo-6,7,8,9-tetrahydro-5H-pyrido[2,3-b]azepin-3-yl)acrylate

HRID 18294

反応式

HRID 18294 の反応式
Br[C:2]1[CH:13]=[N:12][C:5]2[NH:6][C:7](=[O:11])[CH2:8][CH2:9][CH2:10][C:4]=2[CH:3]=1.[C:14]([O:18][C:19]([CH3:22])([CH3:21])[CH3:20])(=[O:17])[CH:15]=[CH2:16].CCN(C(C)C)C(C)C.CC1C=CC=CC=1P(C1C=CC=CC=1C)C1C=CC=CC=1C.N#N>C(#N)CC.CC([O-])=O.CC([O-])=O.[Pd+2]>[O:11]=[C:7]1[NH:6][C:5]2[N:12]=[CH:13][C:2](/[CH:16]=[CH:15]/[C:14]([O:18][C:19]([CH3:22])([CH3:21])[CH3:20])=[O:17])=[CH:3][C:4]=2[CH2:10][CH2:9][CH2:8]1

参加物

8

反応物 5

HCID 947NitrogenHCID 15458tert-Butyl acrylateHCID 80271Tri-o-tolylphosphineHCID 81531DiisopropylethylamineHCID 221390243-Bromo-5,6,7,9-tetrahydro-pyrido[2,3-b]azepin-8-one

生成物 1

HCID 23574465tert-butyl (E)-3-(8-oxo-6,7,8,9-tetrahydro-5H-pyrido[2,3-b]azepin-3-yl)acrylate収率 58.5%

試薬・触媒・溶媒 2

HCID 167845palladium(II) acetate触媒HCID 7854Propionitrile溶媒

実験手順

A solution of 3-bromo-5,6,7,9-tetrahydro-pyrido[2,3-b]azepin-8-one (1.00 g, 4.15 mmole), tert-butyl acrylate (0.67 mL, 4.60 mmole), DIEA (1.45 mL, 8.30 mmole), Pd(OAc)2 (0.09 g, 0.42 mmole) and P(o-tol)3 (0.25 g, 0.85 mmole) in propionitrile (25 mL) was purged with N2 and then heated at reflux overnight. The dark mixture was filtered through a pad of Celite®, and the filter pad was rinsed with acetonitrile (250 mL). The filtrate was concentrated in vacuo, and the residue was purified by flash chromatography on silica gel (ethyl acetate). The title compound (0.70 g, 58%) was obtained as a light yellow solid after drying in vacuo: MS (ES) m/e 289 (M+H)+.

後処理

  1. temperatureheated
  2. temperatureat reflux overnight
  3. filtrationThe dark mixture was filtered through a pad of Celite®
  4. washthe filter pad was rinsed with acetonitrile (250 mL)
  5. concentrationThe filtrate was concentrated in vacuo
  6. customthe residue was purified by flash chromatography on silica gel (ethyl acetate)

出典と根拠

ORDレコード
ord-46a636f3225d4cfa8d382d5ef383e8e6
出典データセット
uspto-grants-2010_06
特許番号
US07741339B2

関連ノート

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