Invention Grant
- Patent Title: Process for preparing alkylated p-phenylenediamines
- Patent Title (中): 制备烷基化对苯二胺的方法
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Application No.: US13620588Application Date: 2012-09-14
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Publication No.: US09029603B2Publication Date: 2015-05-12
- Inventor: Xiaogen Feng , Nongyue Wang , Xiaohui Mao , Ruibiao Yu , Qianwen Cheng
- Applicant: Xiaogen Feng , Nongyue Wang , Xiaohui Mao , Ruibiao Yu , Qianwen Cheng
- Applicant Address: CN Taizhou, Jiangsu Province
- Assignee: Jiangsu Sinorgchem Technology Co., Ltd.
- Current Assignee: Jiangsu Sinorgchem Technology Co., Ltd.
- Current Assignee Address: CN Taizhou, Jiangsu Province
- Agency: Mei & Mark LLP
- Agent Manni Li
- Priority: CN03148194 20030704; CN03148195 20030704; CN03148196 20030704; CN03148198 20030704; CN03148199 20030704; CN03148200 20030704; CN03148565 20030704; CN03148566 20030704
- Main IPC: C07C209/24
- IPC: C07C209/24 ; C07C209/36 ; C07C29/60 ; B01D1/06 ; C07C209/02 ; C07C209/38 ; C07C209/86
Abstract:
A process for preparing alkylated p-phenylenediamine having the steps of reacting aniline and nitrobenzene in presence of a complex base catalyst to obtain 4-aminodiphenylamine intermediates, hydrogenating the 4-aminodiphenylamine intermediates to 4-aminodiphenylamine in presence of a hydrogenation catalyst, and reductively alkylating the 4-aminodiphenylamine to alkylated p-phenylenediamine.
Public/Granted literature
- US20130066113A1 PROCESS FOR PREPARING ALKYLATED P-PHENYLENEDIAMINES Public/Granted day:2013-03-14
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