The treatment of a variety of 2-substituted-4-nitroquinolines with Sn in the presence of concentrated hydrochloric acid in ethanol at 70 degrees C for 2-4 h afforded unusual de-nitro products 2-substituted-quinolines in good yields. (c) 2006 Elsevier Ltd. All rights reserved.
KANEKO C.; YAMAMOTO A.; GOMI M., HETEROCYCLES, 1979, 12, NO 2, 227-230