Triethylamine → 2,4-dibenzyloxy-5-isopropyl-N-(1-methyl-1H-indol-5-yl)-benzamide

HRID 2069481Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2069481
[CH2:1]([O:8][C:9]1[CH:17]=[C:16]([O:18][CH2:19][C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=2)[C:15]([CH:26]([CH3:28])[CH3:27])=[CH:14][C:10]=1[C:11](O)=[O:12])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(Cl)(=O)C(Cl)=O.[CH3:35][N:36]1[C:44]2[C:39](=[CH:40][C:41]([NH2:45])=[CH:42][CH:43]=2)[C:38](C)=[CH:37]1.C(N(CC)CC)C>ClCCl.CN(C=O)C>[CH2:1]([O:8][C:9]1[CH:17]=[C:16]([O:18][CH2:19][C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=2)[C:15]([CH:26]([CH3:28])[CH3:27])=[CH:14][C:10]=1[C:11]([NH:45][C:41]1[CH:40]=[C:39]2[C:44](=[CH:43][CH:42]=1)[N:36]([CH3:35])[CH:37]=[CH:38]2)=[O:12])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Komponenten

7

Edukt 4

HCID 8471TriethylamineHCID 65578Oxalyl chlorideHCID 591678792,4-Dibenzyloxy-5-isopropyl-benzoic acidHCID 595509931,3-Dimethyl-5-aminoindole

Produkt 1

HCID 597295742,4-dibenzyloxy-5-isopropyl-N-(1-methyl-1H-indol-5-yl)-benzamideAusbeute 95,3 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 6228DimethylformamideLösungsmittelHCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

2,4-Dibenzyloxy-5-isopropylbenzoic acid (5.64 g, 15.0 mmol, 1.00 equiv.) in 80 mL dichloromethane at room temperature was treated with oxalyl chloride (2.00 g, 15.75 mmol, 1.05 equiv.) and catalytic amount of DMF (0.1 mL) for 1 hour. Solvent and excess (COCl)2 were removed on rotary evaporator. The residue was dissolved in 100 mL dichloromethane, and treated with 1,3-dimethyl-5-aminoindole (2.40 g, 15.0 mmol, 1.00 equiv.) and triethylamine (2.28 g, 22.5 mmol, 1.50 equiv.) at 0° C. for one hour. Normal aqueous workup and removal of solvent gave a light brown solid that was washed with ether to yield 2,4-dibenzyloxy-5-isopropyl-N-(1-methyl-1H-indol-5-yl)-benzamide (A) as off-white solid (7.20 g, 14.3 mmol, 95%)

Aufarbeitung

  1. customSolvent and excess (COCl)2 were removed on rotary evaporator
  2. dissolutionThe residue was dissolved in 100 mL dichloromethane
  3. customNormal aqueous workup and removal of solvent
  4. customgave a light brown solid that
  5. washwas washed with ether

Quellen und Nachweise

ORD-Eintrag
ord-fa25afa9a2f6493aa48e8c7c6b5ed013
Quelldatensatz
uspto-grants-2012_10
Patentnummer
US08299107B2

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