反应详情

The title compound was prepared from 5-(2-methoxy-phenyl)-cyclohexane-1,3-dione (386 mg, 1.77 mmol), example 1/a, and N,N-dimethylformamide dimethylacetal (2 ml), following the procedure described for 5-(4-chloro-phenyl)-2-dimethylaminomethylene-cyclohexane-1,3-dione (example 2/a stage 1) except that the reaction was run at 100° C. for 2 h, after which the solvent was removed by evaporation under reduced pressure to produce the title compound as a brown oil. The title compound was used without further purification in the next step.

1. customafter which the solvent was removed by evaporation under reduced pressure