1966 年 86 巻 12 号 p. 1166-1167
On heating with triethylammonium formate (5HCO2H·2NEt3) in the presence of Raney nickel catalyst, quinoline, isoquinoline, and acridine were smoothly reduced respectively to 3, 4-dihydro-1(2H)-quinolinecarboxaldehyde, 3, 4-dihydro-2(1H)-isoquinolinecarboxaldehyde ; and 9, 10-dihydroacridine in excellent yield.