Clemmensen Reduction.
E. Clemmensen, Ber. 46, 1837 (1913); 47, 51, 681 (1914)
E. L. Martin in Organic reactions I (New York, 1942), p 155
H. L. Bradlow and C. A. Vander Werf, J. Am. Chem. Soc. 69, 12S4 (1947)
N. J. Leonard and W. C. Wildman, J. Am. Chem. Soc. 71, 3089 (1949)
G. R. Clemo, R. Raper and H. J. Vipond, J. Chem. Soc. 1949, 2095
W. T. Smith Jr., J. Am. Chem. Soc. 73, 1883 (1951)
J. H. Brewster and coworkers, Am. Chem. Soc. 76, 6364, 6368 (1954)
D. Staschewski, Angew. Chem. 71, 726 (1959)
T. Nakabayashi, J. Am. Chem. Soc. 2, 3900, 3906, 3909 (1960)
E. Muller, G. Fiedler, H. Huber, B. Narr, H. Suhr and K. Witte, Z. Naturforsch. 18B, 5 (1963)
Also see Huang-Minlon Modification, Wolff-Kishner Reduction