Acetonitrile → (E)-N,N-Diethyl-3-{4-[6-hydroxy-2-(4-hydroxyphenyl)benzo[b]thiophene-3-carbonyl]phenyl}acrylamide

HRID 400200

反応式

HRID 400200 の反応式
Br[C:2]1[CH:7]=[CH:6][C:5]([C:8]([C:10]2[C:11]3[CH:25]=[CH:24][C:23]([OH:26])=[CH:22][C:12]=3[S:13][C:14]=2[C:15]2[CH:20]=[CH:19][C:18]([OH:21])=[CH:17][CH:16]=2)=[O:9])=[CH:4][CH:3]=1.C1(C)C=CC=CC=1P(C1C=CC=CC=1C)C1C=CC=CC=1C.[CH2:49]([N:51]([CH2:56][CH3:57])[C:52](=[O:55])[CH:53]=[CH2:54])[CH3:50].C(#N)C>C([O-])(=O)C.[Pd+2].C([O-])(=O)C.C(N(CC)CC)C>[CH2:49]([N:51]([CH2:56][CH3:57])[C:52](=[O:55])/[CH:53]=[CH:54]/[C:2]1[CH:3]=[CH:4][C:5]([C:8]([C:10]2[C:11]3[CH:25]=[CH:24][C:23]([OH:26])=[CH:22][C:12]=3[S:13][C:14]=2[C:15]2[CH:20]=[CH:19][C:18]([OH:21])=[CH:17][CH:16]=2)=[O:9])=[CH:6][CH:7]=1)[CH3:50]

参加物

7

反応物 4

HCID 6342AcetonitrileHCID 17583N,N-DiethylacrylamideHCID 80271Tri-o-tolylphosphineHCID 189443264-Bromophenyl-[6-Hydroxy-2-(4-hydroxyphenyl)benzo[b]thien-3-yl]methanone

生成物 1

HCID 18944327(E)-N,N-Diethyl-3-{4-[6-hydroxy-2-(4-hydroxyphenyl)benzo[b]thiophene-3-carbonyl]phenyl}acrylamide収率 55.1%

試薬・触媒・溶媒 2

HCID 167845palladium(II) acetate触媒HCID 8471Triethylamine溶媒

反応条件

温度
85 °C

実験手順

To a screw cap seal tube is added 0.83 g (2.0 mmol) of the product from Example 2, 0.25 g (0.82 mmol) of tri-o-tolylphosphine, 0.30 g (2.3 mmol) of N,N-diethyl acrylamide, 0.045 g (0.21 mmol) of palladium acetate, 40 mL of acetonitrile and 4 mL of triethylamine. The solution was purged with nitrogen then capped and heated to 85° C. for 15 hours. At the end of this time, the solution was concentrated, then taken up in 100 mL of water:ethyl acetate (1:2). The organic layer was separated and the water layer extracted once with ethyl acetate. The ethyl acetate layers were combined, dried (MgSO4) and concentrated. The residue subjected to column chromatography on silica. Elution first with 60% ethyl acetate:hexane followed by ethyl acetate:hexane:isopropanol (60:35:5) yielded 0.52 g of product (55%) which was crystallized from chloroform:acetone:hexane mp 159°-163° C. (soft).

後処理

  1. customTo a screw cap
  2. customseal tube
  3. customThe solution was purged with nitrogen
  4. customthen capped
  5. concentrationAt the end of this time, the solution was concentrated
  6. customThe organic layer was separated
  7. extractionthe water layer extracted once with ethyl acetate
  8. dry with materialdried (MgSO4)
  9. concentrationconcentrated
  10. washElution first with 60% ethyl acetate

出典と根拠

ORDレコード
ord-165741de52604984991db31e15b884bc
出典データセット
uspto-grants-1998_10
特許番号
US05827876

関連ノート

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