反应详情

A solution of 5,6-quinolinediamine (12.5 g, 0.065 mol) and sulfuric acid (8 mL) in methanol (250 mL) was treated with platinum oxide (1 g) in a Parr apparatus under hydrogen for 16 hours. An additional 1 g portion of platinum oxide was added and hydrogenation continued for 44 hours additional. Standard work-up gave the 5,6-diaminotetrahydroquinoline.