Reduction
Dehydrogenation
Decarboxylation
H. Adkins, Reactions of Hydrogen with Organic Compounds over Chromium Oxide and Nickel Catalysts, p12(Madison, Wisconsin, 1937)
H. Adkins, et al, J. Am. Chem. Soc. 72, 2626(1950); Organic Synthesis, 36, 12(1956); 33,38(1953).