Pyrolysis of Acid Amides. III. Pyrolysis of Cyanoacetamides and 2-Phenylacetamides

Abstract
The pyrolyses of cyanoacetamides, 2-phenylacetanilide, 2,2-diphenylacetanilide and 2,2,2-triphenylacetanilide have been studied. The pyrolysis of cyanoacetamides gave the corresponding isocyanates and acetonitrile. On the other hand, the pyrolysis of 2-phenylacetanilide and 2,2-diphenylacetanilide gave a small amount of phenyl isocyanate, along with various byproducts. The pyrolysis of 2,2,2-triphenyl-acetanilide, however, against expectation, did not give isocyanate; only a tarry product resulted.

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