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1. (WO2018105572) METHOD FOR PRODUCING ε-CAPROLACTAM

Pub. No.:    WO/2018/105572    International Application No.:    PCT/JP2017/043539
Publication Date: Fri Jun 15 01:59:59 CEST 2018 International Filing Date: Wed Dec 06 00:59:59 CET 2017
IPC: C07D 201/08
B01J 23/648
B01J 23/847
C07C 255/19
C07D 223/10
C07B 61/00
Applicants: TORAY INDUSTRIES, INC.
東レ株式会社
Inventors: TSUKAMOTO, Daijiro
塚本 大治郎
ITO, Masateru
伊藤 正照
YAMADA, Katsushige
山田 勝成
AKAHIRA, Masato
赤平 真人
YAMAMOTO, Daisuke
山本 大介
YAMAUCHI, Koji
山内 幸二
Title: METHOD FOR PRODUCING ε-CAPROLACTAM
Abstract:
The present invention is a method for producing ε-caprolactam via adipamide that serves as an intermediate. This method for producing ε-caprolactam is characterized by comprising a lactamization step wherein adipamide produced from a starting material compound is reacted with hydrogen and ammonia in the presence of a catalyst which contains a metal and/or a metal compound having hydrogenation ability and a metal oxide that mainly contains an oxide of one or more metal elements selected from the group consisting of metal elements of the fourth to sixth rows in groups 5, 7 to 14 of the periodic table. This method is capable of enhancing the selectivity of ε-caprolactam.