公开(公告)号：JPS5484525A

公开(公告)日：1979-07-05

申请号：JP15067477

申请日：1977-12-16

Applicant: TORAY INDUSTRIES

Inventor： KOBAYASHI TADASHI ,  OONISHI KOUJI ,  ISHIHARA GOROU

IPC: C07C255/24 ,  C07C67/00 ,  C07C253/00

Abstract: PURPOSE:To obtain the title compound, useful as a reagent, etc., under comparatively low pressure, in high efficiency, by continuously taking out the gaseous product, formed by the high temp. gas-liquid reaction of a liquid lactam with NH3 gas introduced continuously into the lactam, from the reaction vessel. CONSTITUTION:A monomer, an oligomer, a polymer of lactam, e.g. epsilon-caprolactam, lambda-laurolactam, nylon chips, etc., or their mixture, is maintained in liquid phase in the reaction vessel, and subjected to the gas-liquid reaction at 280-550 deg.C under normal pressure-100 Kg/cm while supplying NH3 gas continuously into the reaction vessel to form a product containing omega-aminoalkanonitrile. The product is continuously taken out of the vessel in gas phase to give the objective compound. EFFECT:The objective compound can be obtained in high yield using a small amount of NH3, minimizing side-reactions and displacing the equilibrium to the preferable direction. USE:An intermediate of an alkylene diamine which is a raw material of nylon.