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

HRID 496398노트

반응식

HRID 496398 반응식
[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]

참가 물질

6

반응물 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

생성물 1

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

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매

실험 절차

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]+.

후처리

  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)

출처 및 근거

ORD 기록
ord-fbfac0612fc9448e93e2741f2a01f746
출처 데이터셋
uspto-grants-2005_09
특허 번호
US06943183B2

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