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4-Fluorophenol → (7S,8aS)-7-(4-Fluorophenoxy)methyl-2-(5-cyanophenyl)-1,2,3,4,6,7,8,8 a-octahydro-pyrrolo[1,2-a]pyrazine

HRID 861349
ノート
印刷プレビュー

反応式

HRID 861349 の反応式
[OH:1][CH2:2][C@@H:3]1[CH2:19][N:6]2[CH2:7][CH2:8][N:9]([C:11]3[CH:16]=[CH:15][C:14](C#N)=[CH:13][CH:12]=3)[CH2:10][C@@H:5]2[CH2:4]1.[F:20][C:21]1[CH:26]=[CH:25][C:24](O)=[CH:23][CH:22]=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.[N:47]([C:54](OCC)=O)=NC(OCC)=O>C1COCC1>[F:20][C:21]1[CH:26]=[CH:25][C:24]([O:1][CH2:2][C@@H:3]2[CH2:19][N:6]3[CH2:7][CH2:8][N:9]([C:11]4[CH:12]=[C:13]([C:54]#[N:47])[CH:14]=[CH:15][CH:16]=4)[CH2:10][C@@H:5]3[CH2:4]2)=[CH:23][CH:22]=1
参加物実験手順後処理出典と根拠反応ノート

参加物

6

反応物 4

HCID 97324-FluorophenolHCID 11776TriphenylphosphineHCID 220568ethyl N-ethoxycarbonyliminocarbamateHCID 57229001(7S,8aS)-7-hydroxymethyl-2-(4-cyanophenyl)-1,2,3,4,6,7,8,8a-octahydro-pyrrolo[1,2-a]pyrazine

生成物 1

HCID 67648213(7S,8aS)-7-(4-Fluorophenoxy)methyl-2-(5-cyanophenyl)-1,2,3,4,6,7,8,8 a-octahydro-pyrrolo[1,2-a]pyrazine収率 66%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒

実験手順

A solution of 0.25 g (0.97 mmol) of (7S,8aS)-7-hydroxymethyl-2-(4-cyanophenyl)-1,2,3,4,6,7,8,8a-octahydro-pyrrolo[1,2-a]pyrazine (Preparation 16), 0.164 g (1.46 mmol) of 4-fluorophenol, 0.31 g (1.15 mmol) of triphenylphosphine in 10 mL of THF was treated with 0.18 mL (1.15 mmol) of diethyl azodicarboxylate and the solution stirred at ambient temperature for 16 h. The solvent was removed by rotary evaporation, and the residue partitioned between chloroform and 1M sodium hydroxide. The layers were separated, and the organic phase was dried (magnesium sulfate), filtered and evaporated. Purification by flash silica gel chromatography with 1:1 ethyl acetate:hexane gave 0.225 g (66%) of the title compound. mp (.HCl) 81°-85° C. HRMS calcd for C21H23FN3O (MH+): 352.1825, found: 352.1817.

後処理

  1. customThe solvent was removed by rotary evaporation
  2. customthe residue partitioned between chloroform and 1M sodium hydroxide
  3. customThe layers were separated
  4. dry with materialthe organic phase was dried (magnesium sulfate)
  5. filtrationfiltered
  6. customevaporated
  7. customPurification by flash silica gel chromatography with 1:1 ethyl acetate

出典と根拠

ORDレコード
ord-fa9c9f61f32044c98a357e147565c601
出典データセット
uspto-grants-1998_02
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US05714487

反応ノート

読み込み中…

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