The Reaction of Cyanogen and Related Nitriles with 1, 3-Dienes. IV

111 the presence of a chromium oxide catalyst at 420" and atmospheric pressure, propionitrile and butadiene react to form. 2-ethylpyridine and aniline...
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was heated under a 100-cm. Yigreux column a t reflux temperature until acetone stopped distilling. The excess al' reinovetl by distillation and the residue poured of 2.