| 摘要 |
<p>Nicotinonitrile is produced from a piperidine having an alkyl substituent in the three position by contact with ammonia, in the absence of molecular oxygen, and in the presence of oxidized vanadia supported on a porous support, containing from 25% to 75%, by weight, of the vanadia, the vanadia having been placed in molten form substantially entirely within the pores of the support, with the support having a surface area greater than 50 m2/gm and a porosity greater than 0.4 cc/gm, with the support being either gamma-alumina or silica-alumina.</p> |
