Triphenylphosphine → Ethyl (2R)-2-(4-{1-[2-(4-bromophenyl)ethan-1-yl]-5-methyl-1H-pyrrol-2-yl}phenoxy)-3-phenylpropanoate

HRID 1072707ノート

反応式

HRID 1072707 の反応式
[Br:1][C:2]1[CH:7]=[CH:6][C:5]([CH2:8][CH2:9][N:10]2[C:14]([CH3:15])=[CH:13][CH:12]=[C:11]2[C:16]2[CH:21]=[CH:20][C:19]([OH:22])=[CH:18][CH:17]=2)=[CH:4][CH:3]=1.O[C@@H:24]([CH2:30][C:31]1[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=1)[C:25]([O:27][CH2:28][CH3:29])=[O:26].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.N(C(OCC)=O)=NC(OCC)=O>C1(C)C=CC=CC=1>[Br:1][C:2]1[CH:3]=[CH:4][C:5]([CH2:8][CH2:9][N:10]2[C:14]([CH3:15])=[CH:13][CH:12]=[C:11]2[C:16]2[CH:17]=[CH:18][C:19]([O:22][C@H:24]([CH2:30][C:31]3[CH:32]=[CH:33][CH:34]=[CH:35][CH:36]=3)[C:25]([O:27][CH2:28][CH3:29])=[O:26])=[CH:20][CH:21]=2)=[CH:6][CH:7]=1

参加物

6

反応物 4

HCID 11776TriphenylphosphineHCID 220568ethyl N-ethoxycarbonyliminocarbamateHCID 9877619Ethyl phenyllactate, (-)-HCID 223874754-[1-[2-(4-bromophenyl)ethan-1-yl]-5-methyl-1H-pyrrol-2-yl]phenol

生成物 1

HCID 86588891Ethyl (2R)-2-(4-{1-[2-(4-bromophenyl)ethan-1-yl]-5-methyl-1H-pyrrol-2-yl}phenoxy)-3-phenylpropanoate収率 54%

試薬・触媒・溶媒 1

HCID 1140Toluene溶媒

実験手順

To a solution of 4-[1-[2-(4-bromophenyl)ethan-1-yl]-5-methyl-1H-pyrrol-2-yl]phenol (3.00 g, 8.42 mmol), ethyl (S)-2-hydroxy-3-phenylpropanoate (1.96 g, 10.1 mmol) and triphenylphosphine (2.65 g, 10.1 mmol) in toluene (30 ml) was added diethyl azodicarboxylate (1.76 g, 10.1 mmol) and refluxed for 20 hours under heating. The insoluble matter was filtered out and the filtrate was diluted with ethyl acetate. The obtained solution was washed with water and dried over magnesium sulfate anhydride, and the solvent was removed under reduced pressure. The residue was purified by silica gel column chromatography (hexane:ethyl acetate=8:1) to give the object compound as an oily substance. 2.40 g (yield: 54.0%)

後処理

  1. temperaturerefluxed for 20 hours
  2. temperatureunder heating
  3. filtrationThe insoluble matter was filtered out
  4. additionthe filtrate was diluted with ethyl acetate
  5. washThe obtained solution was washed with water
  6. dry with materialdried over magnesium sulfate anhydride
  7. customthe solvent was removed under reduced pressure
  8. customThe residue was purified by silica gel column chromatography (hexane:ethyl acetate=8:1)
  9. customto give the object compound as an oily substance

出典と根拠

ORDレコード
ord-9dd854018f0b40f189b12455cbdd0f1c
出典データセット
uspto-grants-2005_06
特許番号
US06911468B2

反応ノート

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