公开(公告)号：US20190040005A1

公开(公告)日：2019-02-07

申请号：US16073941

申请日：2017-01-30

Applicant: BASF SE

Inventor： Richard DEHN ,  Ahmad DEHESTANI ,  Klemens MASSONNE ,  Steffen WAGLÖHNER ,  Joaquim Henrique TELES ,  Thomas SCHAUB ,  Till Christian BRÜGGEMANN ,  Carlos TELLAECHE HERRANZ ,  Oliver TRAPP ,  Jedrzej WYSOCKI

IPC: C07D201/10 ,  C07B43/02 ,  C07B43/06

Abstract: The present invention relates to a process for preparing C4-C15 lactams, in which a C1-C10-alkyl nitrite is reacted with a C4-C15-cycloalkane and is illuminated with a light-emitting diode during the reaction. This forms a C4-C15-cyclohexanone oxime which is then converted further to a C4-C15 lactam; the C1-C10 alcohol formed is recycled into the preparation of the C1-C10-alkyl nitrite.