Triphenylphosphine → 5-(3,4-Dichloro-benzylsulfanylmethyl)-6-((1S)-2-imidazol-1-yl-1-phenyl-ethoxy)-3,4-dihydro-2H-naphthalen-1-one

HRID 496443ノート

反応式

HRID 496443 の反応式
[Cl:1][C:2]1[CH:3]=[C:4]([CH:20]=[CH:21][C:22]=1[Cl:23])[CH2:5][S:6][CH2:7][C:8]1[C:17]([OH:18])=[CH:16][CH:15]=[C:14]2[C:9]=1[CH2:10][CH2:11][CH2:12][C:13]2=[O:19].[N:24]1([CH2:29][C@@H:30]([C:32]2[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=2)O)[CH:28]=[CH:27][N:26]=[CH:25]1.C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.N(C(OC(C)C)=O)=NC(OC(C)C)=O>O1CCCC1>[Cl:1][C:2]1[CH:3]=[C:4]([CH:20]=[CH:21][C:22]=1[Cl:23])[CH2:5][S:6][CH2:7][C:8]1[C:17]([O:18][C@@H:30]([C:32]2[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=2)[CH2:29][N:24]2[CH:28]=[CH:27][N:26]=[CH:25]2)=[CH:16][CH:15]=[C:14]2[C:9]=1[CH2:10][CH2:11][CH2:12][C:13]2=[O:19]

参加物

6

反応物 4

HCID 11776TriphenylphosphineHCID 75555Diisopropyl diazene-1,2-dicarboxylateHCID 707108(R)-2-Imidazol-1-yl-1-phenyl-ethanolHCID 223246835-(3,4-Dichloro-benzylsulfanylmethyl)-6-hydroxy-3,4-dihydro-2H-naphthalen-1-one

生成物 1

HCID 697357885-(3,4-Dichloro-benzylsulfanylmethyl)-6-((1S)-2-imidazol-1-yl-1-phenyl-ethoxy)-3,4-dihydro-2H-naphthalen-1-one収率 75.5%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒

実験手順

5-(3,4-Dichloro-benzylsulfanylmethyl)-6-hydroxy-3,4-dihydro-2H-naphthalen-1-one (256 mg, 0.69 mmol), (R)-2-imidazol-1-yl-1-phenyl-ethanol (144 mg, 0.75 mmol), and triphenylphosphine resin (1.46 g, loading 1.41 mmol/g) were combined in dry tetrahydrofuran (10 mL) and treated with diisopropyl azodicarboxylate (271 μL, 2.0 mmol). The resulting orange-brown heterogeneous mixture was allowed to stir at ambient temperature overnight. The spent triphenylphosphine resin was removed by filtration, washing sequentially with ethyl acetate, methanol, and chloroform. The filtrate was concentrated in vacuo and the crude material was purified by silica gel chromatography (hexanes/ethyl acetate/triethylamine 28:70:2) to give 280 mg (75%) of the desired product as a colorless solid: (LC-MS, APCI) m/z 553/555 [M+H]+.

後処理

  1. customThe spent triphenylphosphine resin was removed by filtration
  2. washwashing sequentially with ethyl acetate, methanol, and chloroform
  3. concentrationThe filtrate was concentrated in vacuo
  4. customthe crude material was purified by silica gel chromatography (hexanes/ethyl acetate/triethylamine 28:70:2)

出典と根拠

ORDレコード
ord-527bd0b7ee2148b38f782a3480ec09a4
出典データセット
uspto-grants-2005_09
特許番号
US06943183B2

反応ノート

読み込み中…