ChemicalBook CAS DataBase List 3-Ethylindole

3-Ethylindole synthesis

12synthesis methods

Product Name:3-Ethylindole
CAS Number:1484-19-1
Molecular formula:C10H11N
Molecular Weight:145.2

120-72-9 Synthesis

120-72-9
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$6.00/25g

109-92-2 Synthesis

109-92-2
266 suppliers
$16.00/25mL

1484-19-1
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Yield: 99%

Reaction Conditions:

with indium(III) chloride in tetrahydrofuran at 70; for 12 h;Schlenk technique;Reagent/catalyst;Solvent;Temperature;

Steps:

6 Example 6: Synthesis of 3-ethyl-1H-indole(3f)
Accurately weigh indole (117.2mg, 1.0mmol), ethyl vinyl ether (216.3mg, 3.0mmol), indium trichloride (22.1mg, 0.1mmol), and add them to a 25mL Schlenk bottle, and add tetrahydrofuran (10.0 mL), placed in an oil bath at 70°C for 12 hours.After the completion of the reaction, the solvent was distilled off under reduced pressure, petroleum ether/ethyl acetate was used as the eluent, and silica gel column chromatography was used for separation. The yield of the alkylated product was >99%.

References:

Lupanshui Normal College;Chen Xia;Zhou Xiaoyu;Liu Hailong;Chen Dingmei CN111410598, 2020, A Location in patent:Paragraph 0051-0053; 0055-0056; 0058