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4-Chlorophenol → tert-Butyl 6-[2-(4-chlorophenoxy)ethyl]-1,4,5,6-tetrahydroazepino[4,5-b]indole-3(2H)-carboxylate

HRID 1071062
ノート
印刷プレビュー

反応式

HRID 1071062 の反応式
[OH:1][CH2:2][CH2:3][N:4]1[C:12]2[CH:11]=[CH:10][CH:9]=[CH:8][C:7]=2[C:6]2[CH2:13][CH2:14][N:15]([C:18]([O:20][C:21]([CH3:24])([CH3:23])[CH3:22])=[O:19])[CH2:16][CH2:17][C:5]1=2.[Cl:25][C:26]1[CH:31]=[CH:30][C:29](O)=[CH:28][CH:27]=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.N(C(OCC)=O)=NC(OCC)=O>C1COCC1>[Cl:25][C:26]1[CH:31]=[CH:30][C:29]([O:1][CH2:2][CH2:3][N:4]2[C:12]3[CH:11]=[CH:10][CH:9]=[CH:8][C:7]=3[C:6]3[CH2:13][CH2:14][N:15]([C:18]([O:20][C:21]([CH3:24])([CH3:23])[CH3:22])=[O:19])[CH2:16][CH2:17][C:5]2=3)=[CH:28][CH:27]=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 46844-ChlorophenolHCID 11776TriphenylphosphineHCID 220568ethyl N-ethoxycarbonyliminocarbamateHCID 22396751tert-butyl 6-(2-hydroxyethyl)-1,4,5,6-tetrahydroazepino[4,5-b]indole-3(2H)-carboxylate

生成物 1

HCID 22396776tert-Butyl 6-[2-(4-chlorophenoxy)ethyl]-1,4,5,6-tetrahydroazepino[4,5-b]indole-3(2H)-carboxylate収率 88%

試薬・触媒・溶媒

1
HCID 8028Tetrahydrofuran溶媒

実験手順

tert-Butyl 6-(2-hydroxyethyl)-1,4,5,6-tetrahydroazepino[4,5-b]indole-3(2H)-carboxylate (0.533 g, 1.61 mmol), p-chlorophenol (0.224 g, 1.74 mmol, 1.08 equiv.) and triphenylphosphine (0.445 g, 1.70 mmol, 1.05 equiv.) was dissolved in THF (10 mL) and stirred at rt under N2. Diethyl azodicarboxylate (0.30 mL, 0.337 g, 1.93 mmol, 1.2 equiv.) was added, and the reaction mixture was stirred for 2.5 h. The reaction mixture was concentrated to give crude product (1.85 g), which was chromatographed (SiO2 175 g, eluted with 4:1 hexane:EtOAc) to give tert-butyl 6-[2-(4-chlorophenoxy)ethyl]-1,4,5,6-tetrahydroazepino[4,5-b]indole-3(2H)-carboxylate (0.622 g) in 88% yield. 1H NMR (300 MHz, CD3OD) δ 1.48, 2.96-3.03, 3.05-3.14, 3.63-3.78, 4.15, 4.48, 6.70, 7.11, 7.15-7.20, 7.17, 7.27-7.31, 7.46-7.51; MS (ESI+) for C25H29ClN2O3 m/z 440.9 (M+H)+.

後処理

  1. stirringthe reaction mixture was stirred for 2.5 h
  2. concentrationThe reaction mixture was concentrated
  3. customto give crude product (1.85 g), which
  4. customwas chromatographed
  5. wash(SiO2 175 g, eluted with 4:1 hexane:EtOAc)

出典と根拠

ORDレコード
ord-be07901056114d0193fadbf094b61a06
出典データセット
uspto-grants-2005_06
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US06903090B2

反応ノート

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