Aluminum(III) Chloride → HCID 57628288, compound

Participants

Reaction Steps

Into a solution obtained by dissolving 3-aminothiophene (2.0 g, 20.6 mmol) in 4-methyl-2-pentanone (28.3 g), which was obtained by the method in Example 14 using methyl 3-aminothiophene-2-carboxylate as a starting material was added aluminum chloride (1.3 g, 24.5 mmol) at room temperature, and the resulting solution was stirred under nitrogen atmosphere at 60 degree centigrade for 5 hours. The reaction solution was cooled to room temperature, and then washed with a 10% aqueous sodium hydroxide solution, and separated. As a result of the analysis by the HPLC internal standard method of the obtained organic layer, 0.4 g was produced as a mixture of three compounds including 3-amino-2-{(E)-(4-methyl-2-penten-2-yl)}thiophene, 3-amino-2-{(Z)-(4-methyl-2-penten-2-yl)}thiophene and 3-amino-2-(4-methyl-1-penten-2-yl)thiophene (yield: 12%).

Provenance & Evidence