公开(公告)号：US12060326B2

公开(公告)日：2024-08-13

申请号：US18054558

申请日：2022-11-11

Applicant: HANWHA SOLUTIONS CORPORATION

Inventor： Jiyeon Kim ,  Youngjin Kim ,  Jeongseok Park ,  Jinho Park ,  Hyun Seo ,  Seonghoon Hyeong ,  Kyuho Song

IPC: C07D201/04

CPC classification number: C07D201/04

Abstract: The present invention relates to a laurolactam preparation method and synthesis apparatus, and epoxidation and a rearrangement reaction are performed in the conversion of cyclododecene into cyclododecanone so that the preparation method can synthesize laurolactam having a higher purity with a higher selectivity and in a higher yield than a conventional preparation method.

公开(公告)号：US11535591B2

公开(公告)日：2022-12-27

申请号：US17311353

申请日：2019-12-18

Applicant: HANWHA SOLUTIONS CORPORATION

Inventor： Jiyeon Kim ,  Youngjin Kim ,  Jeongseok Park ,  Jinho Park ,  Hyun Seo ,  Seonghoon Hyeong ,  Kyuho Song

IPC: C07D201/04

Abstract: The present invention relates to a laurolactam preparation method and synthesis apparatus, and epoxidation and a rearrangement reaction are performed in the conversion of cyclododecene into cyclododecanone so that the preparation method can synthesize laurolactam having a higher purity with a higher selectivity and in a higher yield than a conventional preparation method.

公开(公告)号：US11358923B2

公开(公告)日：2022-06-14

申请号：US17298921

申请日：2019-09-16

Applicant: HANWHA SOLUTIONS CORPORATION

Inventor： Jiyeon Kim ,  Jeongseok Park ,  Jinho Park ,  Kyuho Song

IPC: C07C45/28

Abstract: The present invention relates to a method of preparing cyclododecanone. According to the present invention, a method of preparing cyclododecanone which allows implementation of a high conversion rate and minimization of production of unreacted materials and reaction by-products may be provided. In addition, the present invention implements a high conversion rate and a high selectivity even by a simplified process configuration, and thus may be usefully utilized in an economical method of preparing laurolactam, allowing commercially easy mass production.