Cesium carbonate → HCID 66788805, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 4-(3,4-dichlorophenyl)-2-methyl-1,2,3,4-tetrahydroisoquinolin-7-yl trifluoromethanesulfonate (100 mg, 0.23 mmol) which was prepared in Step G of Example 11, 2-cyanophenylboronic acid (51 mg, 0.35 mmol) and cesium carbonate (225 mg, 0.69 mmol) in water (1 mL) and N,N-dimethylformamide (2 mL) was degassed with argon and then [1,1′-bis(diphenylphosphino)ferrocene]palladium(II) dichloromethane adduct (8 mg, 0.01 mmol) was added. The mixture was degassed again and then heated to 90° C. for 3 hours. The mixture was partitioned between water and ethyl acetate (3×) and the combined organic extracts were washed with brine, dried over sodium sulfate, filtered, and concentrated. The residue was partially purified by preparative thin-layer chromatography (1:4 hexanes/ethyl acetate) to give 2-(4-(3,4-dichlorophenyl)-2-methyl-1,2,3,4-tetrahydroisoquinolin-7-yl)benzonitrile (57 mg, 63%) as a brown solid: ESI MS m/z 393, 395 [M+H]+.

Provenance & Evidence