| 摘要 |
A process for selective catalytic hydrolysis and cyclization of unsaturated nitriles to the corresponding lactams, particularly conversion of 2-methylene glutaronitrile to 5-cyano-2-piperidone, the latter compound being claimed as a new composition of matter. 5-cyano-2-piperidone is especially useful for the preparation of polymers and resins such as carboxylated nylons, may be utilized to form polyamides and can be hydrolyized to an amino diacid which can form a linear polyamide useful, after hydrolysis, to adhere nylons and suitably grafted polyethylenes to hydroxyl-containing materials.
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