Title:
２置換１，４−ベンゼンジアミン及びその塩を調製する方法
Document Type and Number:
Japanese Patent JP6441478
Kind Code:
B2
Abstract:
A process for the preparation of 2-substituted-1,4-benzenediamines, a cosmetically acceptable salt thereof, or mixture thereof. The process according to the present invention is a particularly cost effective process in that it avoids sophisticated chemical steps which requires special equipment or expensive catalysts and in that it comprises a recycling step of one of the starting materials, namely the 2-substituted aniline.
Inventors:
Garrett, Garry Stephen
Abel and haike
Ozan, Armin
Gardrik, John Michael
Murphy, Brian Patrick
Specbacher, Marx
Weber, Ingo Reinhold
Abel and haike
Ozan, Armin
Gardrik, John Michael
Murphy, Brian Patrick
Specbacher, Marx
Weber, Ingo Reinhold
Application Number:
JP2017524396A
Publication Date:
December 19, 2018
Filing Date:
October 29, 2015
Export Citation:
Assignee:
Noxel Corporation
International Classes:
C07C217/76; C07C213/02
Domestic Patent References:
| JP2001151739A | ||||
| JP2013544774A | ||||
| JP57122047A |
Attorney, Agent or Firm:
Ryoichi Takaoka
Nao Oda
Akiyo Iwahori
Kaoru Takahashi
Nao Oda
Akiyo Iwahori
Kaoru Takahashi