7-Aminoquinoline → HCID 22135529, compound

Participants

Reaction Conditions

Reaction Steps

(Analogous to the procedure of WO 178270). A mixture of 3,6-dichloro-4-(4-trifluoromethylphenyl)pyridazine, Example 81(d), (2.0 g, 6.8 mmol), 7-amino-quinoline (984 mg, 6.8 mmol) and ZnCl2 (980 mg, 3.4 mmol) was heated in a microwave with stirring at 220° C. for 20 min. The reaction mixture was cooled to room temperature, a second portion of 3,6-dichloro-4-(4-trifluoromethylphenyl)-pyridazine (2.0 g, 6.8 mmol), was added and the mixture was heated again in microwave at 220° C. for 40 min. The reaction mixture was cooled to room temperature, diluted with EtOAc (50 mL) and washed with H2O (3×). The organic layer was dried over Na2SO4, filtered and the solvent evaporated in vacuo. The residue was purified by preparative thin layer chromatography, eluting with MeOH:CH2Cl2 (1:39), to give the title compound as a light-yellow powder. MS (ESI, pos. ion) m/z: 401 (M+1).

Provenance & Evidence