Sulfuric Acid → 1-(4-Chlorobenzoyl)-isoquinoline

Participants

Reaction Steps

To a solution of 3.1 g (20 millimoles) of 1-cyano-isoquinoline in anhydrous ether a Grignard reagent prepared from 5.75 g (30 millimoles) of 4-chloro-bromobenzene and 0.735 g (30 millimoles) of magnesium metal is added. The reaction mixture is allowed to stand for a night, thereafter the complex is decomposed with ammonium chloride solution, acidified with a 20% sulfuric acid and allowed to stand for 2 hours. After neutralization the ether phase is separated and the solvent is distilled off. 4.1 g (76.6%) of 1-(4-chlorobenzoyl)-isoquinoline are obtained.

Provenance & Evidence