Hexane → {2-[5-(3-Benzyloxy-prop-1-ynyl)-1H-indol-3-yl]-ethyl}-dimethyl-amine

HRID 1991576

Reaktionsgleichung

Reaktionsgleichung von HRID 1991576
Br[C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][CH:10]=1)[NH:7][CH:6]=[C:5]2[CH2:11][CH2:12][N:13]([CH3:15])[CH3:14].P(C(C)(C)C)(C(C)(C)C)C(C)(C)C.CCCCCC.[CH2:35]([O:38][CH2:39][C:40]1[CH:45]=[CH:44][CH:43]=[CH:42][CH:41]=1)[C:36]#[CH:37].BrC1C=C2C(NC=C2CCN)=CC=1>N1CCCCC1.C(OCC)(=O)C.[Cu]I.C1C=CC(C#N)=CC=1.C1C=CC(C#N)=CC=1.Cl[Pd]Cl>[CH2:39]([O:38][CH2:35][C:36]#[C:37][C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][CH:10]=1)[NH:7][CH:6]=[C:5]2[CH2:11][CH2:12][N:13]([CH3:15])[CH3:14])[C:40]1[CH:45]=[CH:44][CH:43]=[CH:42][CH:41]=1

Komponenten

10

Edukt 5

HCID 8058HexaneHCID 771585-BromotryptamineHCID 83681Tris(1,1-dimethylethyl)phosphineHCID 3602525-Bromo-N,N-DimethyltryptamineHCID 6917484((Prop-2-yn-1-yloxy)methyl)benzene

Produkt 1

HCID 9996889{2-[5-(3-Benzyloxy-prop-1-ynyl)-1H-indol-3-yl]-ethyl}-dimethyl-amine

Reagenzien, Katalysatoren, Lösungsmittel 4

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)KatalysatorHCID 498840Bis(benzonitrile)palladium chlorideKatalysatorHCID 8082PiperidineLösungsmittel2×HCID 8857Ethyl AcetateLösungsmittel

Reaktionsbedingungen

Temperatur
50 °C

Versuchsvorschrift

A Schlenk flask is charged with CuI (19 mg, 0.1 mmol), Pd(PhCN)2Cl2 (39 mg, 0.1 mmol), piperidine (28 mL), and [2-(5-bromo-1H-indol-3-yl)ethyl]-dimethyl-amine (Example 3) (2.70 g, 10 mmol). The mixture is degassed, and then 0.4 mL of a solution of P(tBu)3 in hexane (0.2 mmol) is added. The stirred yellow solution is warmed to 50° C., and a solution of benzyl propargyl ether (2.65 g, 20 mmol) in piperidine (2 mL) is added during a 5 hour period. The yellow reaction mixture is left stirring for another 15 hours when HPLC indicates complete conversion of the 5-bromotryptamine. The mixture is diluted with ethyl acetate, washed with brine (4 times 10%, 3 times saturated), and dried. After removal of the solvent, the residue is triturated with 20 mL hexane/O(i-Pr)2 (1:1). The crystals which form are filtered off, washed with 4 mL of the same solvent mixture and dried in vacuo. Yield of the title compound: 2.70 g (75%), mp.=93-95° C. 1H-NMR (CDCl3, 300 MHz) δ 2.36 (s, 6, N(CH3)2); 2.63-2.70 (m, 2, CH2NMe2); 2.90-2.97 (m, 2, indol-CH2); 4.46 (s, 2, CH2-alkin); 4.72 (s, 2, CH2Ph); 6.94 (d, 1, J=2.2 Hz, H-2); 7.18 (dd, 1, J=8.4 Hz, J=0.7 Hz, H-7); 7.26 (dd, 1, J=1.4 Hz, H-6); 7.32, 7.37, 7.41 (m, 5, Ph p-, m-, o-H); 7.76 (d, 1, H-4); 8.63 (br s, 1, NH).

Aufarbeitung

  1. customThe mixture is degassed
  2. waitThe yellow reaction mixture is left
  3. washwashed with brine (4 times 10%, 3 times saturated)
  4. customdried
  5. customAfter removal of the solvent
  6. customthe residue is triturated with 20 mL hexane/O(i-Pr)2 (1:1)
  7. filtrationThe crystals which form are filtered off
  8. washwashed with 4 mL of the same solvent mixture
  9. customdried in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-280b5b3aeb6d491089c48485b5ab8b21
Quelldatensatz
uspto-grants-2010_01
Patentnummer
US07645886B2

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